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Finding the Third Proportional to 3,489.75 and 4,822.88

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Solution

The third proportional to 3,489.75 and 4,822.88 is: 6,665.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.75 : 4,822.88 = 4,822.88 : x
  2. Step 2: Convert to fraction form
    3,489.75/4,822.88 = 4,822.88/x
  3. Step 3: Cross multiply
    3,489.75x = 4,822.88 × 4,822.88
  4. Step 4: Simplify right side
    3,489.75x = 23,260,123.27
  5. Step 5: Solve for x
    x = 23,260,123.27/3,489.75
  6. Step 6: Final answer
    x = 6,665.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.