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Finding the Third Proportional to 3,545 and 6,646

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Solution

The third proportional to 3,545 and 6,646 is: 12,459.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545 : 6,646 = 6,646 : x
  2. Step 2: Convert to fraction form
    3,545/6,646 = 6,646/x
  3. Step 3: Cross multiply
    3,545x = 6,646 × 6,646
  4. Step 4: Simplify right side
    3,545x = 44,169,316
  5. Step 5: Solve for x
    x = 44,169,316/3,545
  6. Step 6: Final answer
    x = 12,459.61

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Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.