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Finding the Third Proportional to 4,089.38 and 6,343.88

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Solution

The third proportional to 4,089.38 and 6,343.88 is: 9,841.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,089.38 : 6,343.88 = 6,343.88 : x
  2. Step 2: Convert to fraction form
    4,089.38/6,343.88 = 6,343.88/x
  3. Step 3: Cross multiply
    4,089.38x = 6,343.88 × 6,343.88
  4. Step 4: Simplify right side
    4,089.38x = 40,244,750.02
  5. Step 5: Solve for x
    x = 40,244,750.02/4,089.38
  6. Step 6: Final answer
    x = 9,841.30

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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.