Express as a percentage :
`3 : 4`

Answer

To express the ratio \(3 : 4\) as a percentage, follow these steps:

### Step-by-Step Solution:

1. **Convert the Ratio to a Fraction**:
The ratio \(3 : 4\) can be expressed as a fraction:
\[ \frac{3}{4} \]

2. **Convert the Fraction to a Percentage**:
To convert the fraction to a percentage, multiply it by 100:
\[ \frac{3}{4} \times 100 \]

3. **Perform the Multiplication**:
Calculate the multiplication:
\[ \frac{3 \times 100}{4} = \frac{300}{4} \]

4. **Simplify the Fraction**:
Now simplify \(\frac{300}{4}\):
\[ \frac{300}{4} = 75 \]

5. **Write the Final Answer**:
Therefore, the ratio \(3 : 4\) expressed as a percentage is:
\[ 75\% \]