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Finding the Third Proportional to 5,781.38 and 8,261.44

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Solution

The third proportional to 5,781.38 and 8,261.44 is: 11,805.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,781.38 : 8,261.44 = 8,261.44 : x
  2. Step 2: Convert to fraction form
    5,781.38/8,261.44 = 8,261.44/x
  3. Step 3: Cross multiply
    5,781.38x = 8,261.44 × 8,261.44
  4. Step 4: Simplify right side
    5,781.38x = 68,251,349.57
  5. Step 5: Solve for x
    x = 68,251,349.57/5,781.38
  6. Step 6: Final answer
    x = 11,805.38

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.