Finding the Third Proportional to 756 and 1,521
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Solution
The third proportional to 756 and 1,521 is: 3,060.11
Step by Step Solution
- Step 1: Write the proportion equation
756 : 1,521 = 1,521 : x - Step 2: Convert to fraction form
756/1,521 = 1,521/x - Step 3: Cross multiply
756x = 1,521 × 1,521 - Step 4: Simplify right side
756x = 2,313,441 - Step 5: Solve for x
x = 2,313,441/756 - Step 6: Final answer
x = 3,060.11
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Why These Related Problems?
These problems maintain the same ratio (2.01) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.