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Finding the Third Proportional to 3,310.38 and 4,640.75

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Solution

The third proportional to 3,310.38 and 4,640.75 is: 6,505.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,310.38 : 4,640.75 = 4,640.75 : x
  2. Step 2: Convert to fraction form
    3,310.38/4,640.75 = 4,640.75/x
  3. Step 3: Cross multiply
    3,310.38x = 4,640.75 × 4,640.75
  4. Step 4: Simplify right side
    3,310.38x = 21,536,560.56
  5. Step 5: Solve for x
    x = 21,536,560.56/3,310.38
  6. Step 6: Final answer
    x = 6,505.78

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.