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Finding the Third Proportional to 3,990.52 and 5,869.97

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Solution

The third proportional to 3,990.52 and 5,869.97 is: 8,634.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990.52 : 5,869.97 = 5,869.97 : x
  2. Step 2: Convert to fraction form
    3,990.52/5,869.97 = 5,869.97/x
  3. Step 3: Cross multiply
    3,990.52x = 5,869.97 × 5,869.97
  4. Step 4: Simplify right side
    3,990.52x = 34,456,533.13
  5. Step 5: Solve for x
    x = 34,456,533.13/3,990.52
  6. Step 6: Final answer
    x = 8,634.61

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.