Question

find the value of x in the proportion 5/2:x::7/2:4​

Answer 1

$= > \frac{5}{2} :x:: \frac{7}{2} :4 \\ \\ = > \frac{5}{2} \div x = \frac{7}{2} \div 4 \\ \\ = > \frac{5}{2} \times \frac{1}{x} = \frac{7}{2} \times \frac{1}{4} \\ \\ = > \frac{5}{2x} = \frac{7}{8} \\ \\ = > 5 \times 8 = 7 \times 2x \\ = > 40 = 14x \\ = > x = \frac{40}{14 } \\ \\ = > x = \frac{20}{7}$

Hope it's helpful to you

Answer 2

Answer:

5/2:x::7/2:4

5/2×4=7/2×x

10=7/2x

10×2/7=x

20/7=x

5/2:20/7::7/2:4

hope it's help you ❣️