Example 1: Solve the proportion for x.
- Find the scale factor. In this example the scale factor is 4 (3 × 4 = 12).
- Multiply by the scale factor.
- Since x is in the denominator, find the denominator. x = 8(4) = 32
x = 32
Example 2: Solve the proportion for x.
- Find the scale factor. In this example the scale factor is 3 (7 × 3 = 21).
- Multiply by the scale factor.
- Since x is in the numerator, find the numerator. x = 2(3) = 6
x = 6
Pause and Reflect
Once you have the proportion written, how could you solve the proportion?