Proportion Calculator

Enter Calculation

a : b = c : d

A:

B:

C:

D:

This calculator solves the proportion a:b = c:d for any unknown value.

Enter values for any three of a, b, c, or d. Leave the unknown value blank.

Example: For 2:4 = 3:x, enter a=2, b=4, c=3, and leave d blank.

Calculate Clear

Results

Calculated D

6

A: 2

B: 4

C: 3

D: 0