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Finding the Third Proportional to 3,997 and 8,788

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Solution

The third proportional to 3,997 and 8,788 is: 19,321.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,997 : 8,788 = 8,788 : x
  2. Step 2: Convert to fraction form
    3,997/8,788 = 8,788/x
  3. Step 3: Cross multiply
    3,997x = 8,788 × 8,788
  4. Step 4: Simplify right side
    3,997x = 77,228,944
  5. Step 5: Solve for x
    x = 77,228,944/3,997
  6. Step 6: Final answer
    x = 19,321.73

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.