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Finding the Third Proportional to 3,918 and 8,997

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Solution

The third proportional to 3,918 and 8,997 is: 20,660.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918 : 8,997 = 8,997 : x
  2. Step 2: Convert to fraction form
    3,918/8,997 = 8,997/x
  3. Step 3: Cross multiply
    3,918x = 8,997 × 8,997
  4. Step 4: Simplify right side
    3,918x = 80,946,009
  5. Step 5: Solve for x
    x = 80,946,009/3,918
  6. Step 6: Final answer
    x = 20,660.03

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Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.