Question

Solve the proportion for X.

3X 120
----- = ------
24 192

Answer 1

x = 5

Explanation:

There are two possible ways to look at this equation, but each way the answer is the same

first

(3x / 24) = (120 / 192)

solve using cross products

24 * 120 = 3x * 192

2880 = 576 x

/ 576 /576

5 = x

second

(3x / 120) = (24 / 192)

solve using cross products

3x * 192 = 24 * 120

576 x = 2880

/576 /576

x = 5