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Check if a table is proportional

Test if the rows/columns are proportional.

Calculator

Columns4
1
2
3
4
Row 1
Row 2

Results

ResultProportional
k (ratio)2.50
Formula
—
The ratio is constant: the table is proportional.

Definition & test

A table is proportional if r2 / r1 is identical for all complete columns.

Formula
—
  1. Calculate k = r2 / r1 on a complete column.
  2. Recalculate k on other complete columns.
  3. If all ratios are identical, the table is proportional.
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About: Check a proportionality table

This tool allows you to quickly check if a table corresponds to a proportionality situation by verifying the existence of a constant coefficient between the rows.

Use case

  • School exercisesCheck if a given table in an exercise corresponds to a proportionality situation.
  • Quick checkValidate a manually filled table before proceeding with a calculation.
  • Real dataTest if two quantities change proportionally (prices, quantities, distances…).

What you get

A clear indication of whether the table is proportional or not.

The proportionality coefficient when it exists.

Limits and points of attention

  • The values must be numeric and comparable.
  • An error in a single column is enough to break the proportionality.

Frequently asked questions

How to know if a table is proportional?
If the ratio between the two rows is constant for all columns.
And if a value does not respect the coefficient?
Then the table is not proportional.

Tip

Start by dividing each value in the second row by the first: the result must be constant.