Verified Answer :

2/4 = 1/2
11/(11/2) = 11* (2/11)= 2 = 2/1

Because 1/2 ≠ 2/1, the ratios 2 to 4 and 11 to 11/2 do not form a proportion~

Proportion is a method  to compare the ratio of the two quantities of the same units. Using the proportion we can compare the part of a whole of a number with other part of the whole. The ratios given in the problem are not equal thus they do not form a proportion as to form a proportion the ratio of two number must be equal.

What is proportion?

Proportion is a method  to compare the ratio of the two quantities of the same units. Using the proportion we can compare the part of a whole of a number with other part of the whole.

Given-

The first ratio given in the problem let \(r_1\) is,

\(r_1=\dfrac{2}{4}\)

\(r_1=\dfrac{1}{2}\)

The second ratio given in the problem \(r_2\) is,

\(r_2=\dfrac{11}{\dfrac{11}{2} }\)

As the denominator of the denominator is the product of numerator. Thus,

\(r_2=\dfrac{11\times2}{{11} }\)

\(r_2=\dfrac{22}{{11} }\)

\(r_2=2\)

Compare both the ratio,

\(r_1 eq r_2\)

Thus, the ratios given in the problem do not form a proportion as to form a proportion the ratio of two number must be equal.

Learn more about the proportion here;

https://brainly.com/question/2548537