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Finding the Third Proportional to 3,997.41 and 8,722.69

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Solution

The third proportional to 3,997.41 and 8,722.69 is: 19,033.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,997.41 : 8,722.69 = 8,722.69 : x
  2. Step 2: Convert to fraction form
    3,997.41/8,722.69 = 8,722.69/x
  3. Step 3: Cross multiply
    3,997.41x = 8,722.69 × 8,722.69
  4. Step 4: Simplify right side
    3,997.41x = 76,085,277.22
  5. Step 5: Solve for x
    x = 76,085,277.22/3,997.41
  6. Step 6: Final answer
    x = 19,033.66

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.