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Finding the Third Proportional to 3,990.52 and 6,200.93

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Solution

The third proportional to 3,990.52 and 6,200.93 is: 9,635.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990.52 : 6,200.93 = 6,200.93 : x
  2. Step 2: Convert to fraction form
    3,990.52/6,200.93 = 6,200.93/x
  3. Step 3: Cross multiply
    3,990.52x = 6,200.93 × 6,200.93
  4. Step 4: Simplify right side
    3,990.52x = 38,451,528.99
  5. Step 5: Solve for x
    x = 38,451,528.99/3,990.52
  6. Step 6: Final answer
    x = 9,635.73

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.