Question

4,x,9 are in continued proportion, find the value of x

Answer 1

x is the mean proportion.

4:x::x:9

Product of means= Product of extremes

x×x= 4×9

x^2= 36

x= Square root of 36

x= 6.

Answer: The value of x is 6.

Answer 2

4:x::x:9
=4/x=x/9
=4*x=x*9
=x²=4*9
=x²=36
=x=√36
=x=6