Finding the Third Proportional to 4 and 10.75
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Solution
The third proportional to 4 and 10.75 is: 28.89
Step by Step Solution
- Step 1: Write the proportion equation
4 : 10.75 = 10.75 : x - Step 2: Convert to fraction form
4/10.75 = 10.75/x - Step 3: Cross multiply
4x = 10.75 × 10.75 - Step 4: Simplify right side
4x = 115.56 - Step 5: Solve for x
x = 115.56/4 - Step 6: Final answer
x = 28.89
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Why These Related Problems?
These problems maintain the same ratio (2.69) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.