Finding the Third Proportional to 3,135 and 6,915
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Solution
The third proportional to 3,135 and 6,915 is: 15,252.70
Step by Step Solution
- Step 1: Write the proportion equation
3,135 : 6,915 = 6,915 : x - Step 2: Convert to fraction form
3,135/6,915 = 6,915/x - Step 3: Cross multiply
3,135x = 6,915 × 6,915 - Step 4: Simplify right side
3,135x = 47,817,225 - Step 5: Solve for x
x = 47,817,225/3,135 - Step 6: Final answer
x = 15,252.70
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Why These Related Problems?
These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.