3/4 is 70% of what number, Let the number is x:
So, the expression will be :
70% of x = 3/4
[tex]\begin{gathered} \text{ 70\% of x = }\frac{3}{4} \\ \frac{70\times x}{100}=\frac{3}{4} \\ 70x=\frac{3}{4}\times100 \\ x=\frac{3\times100}{4\times70} \\ x=\frac{300}{280} \\ x=\frac{30}{28} \\ x=\frac{15}{14} \\ x=1.07142 \end{gathered}[/tex]x = 1.07142
The number is 1.07142