Question

which method could most easily be used to solve this proportion?

(4)/(7) = (6)/(d)

Dividing out a ratio

Cross-multiplication

Sums and differences

Equivalent fractions

Answer 1

Cross-multiplication

Answer 2

You always use cross-multiplication, don't you?

Answer 3

\( \color{Black}{\Rightarrow {4 \times d} = {7 \times 6}}\)

For some trivia, here is how it is done.

Answer 4

OK THAX

Answer 5

You just have to multiply the means and the extremes.

Answer 6

You're welcome!