Finding the Third Proportional to 4 and 7.22
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Solution
The third proportional to 4 and 7.22 is: 13.03
Step by Step Solution
- Step 1: Write the proportion equation
4 : 7.22 = 7.22 : x - Step 2: Convert to fraction form
4/7.22 = 7.22/x - Step 3: Cross multiply
4x = 7.22 × 7.22 - Step 4: Simplify right side
4x = 52.11 - Step 5: Solve for x
x = 52.11/4 - Step 6: Final answer
x = 13.03
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Why These Related Problems?
These problems maintain the same ratio (1.80) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.