Question

Solve the proportion.

3x/9=7/4

Answer 1

x = 5.25 or 21/4 or 5 1/4

Explanation:

3x : 9 = 7 : 4

3x = 9 x 7 : 4

3x = 63 : 4

3x = 15.75

x = 15.75 : 3

x = 5.25 or 21/4 or 5 1/4

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check

(3 × 5.25) : 9 = 7 : 4

15.75 : 9 = 7 : 4

1.75 = 1.75

same value, the answer is good

Answer 2

exact form: x=21/4

decimal form: 5.25.

mixed number form: x=5 1/4

Explanation:

have a good day :)