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Finding the Third Proportional to 3,658.92 and 8,136.70

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Solution

The third proportional to 3,658.92 and 8,136.70 is: 18,094.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,658.92 : 8,136.70 = 8,136.70 : x
  2. Step 2: Convert to fraction form
    3,658.92/8,136.70 = 8,136.70/x
  3. Step 3: Cross multiply
    3,658.92x = 8,136.70 × 8,136.70
  4. Step 4: Simplify right side
    3,658.92x = 66,205,937.74
  5. Step 5: Solve for x
    x = 66,205,937.74/3,658.92
  6. Step 6: Final answer
    x = 18,094.38

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.