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Finding the Third Proportional to 3,642.38 and 4,629.75

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Solution

The third proportional to 3,642.38 and 4,629.75 is: 5,884.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,642.38 : 4,629.75 = 4,629.75 : x
  2. Step 2: Convert to fraction form
    3,642.38/4,629.75 = 4,629.75/x
  3. Step 3: Cross multiply
    3,642.38x = 4,629.75 × 4,629.75
  4. Step 4: Simplify right side
    3,642.38x = 21,434,585.06
  5. Step 5: Solve for x
    x = 21,434,585.06/3,642.38
  6. Step 6: Final answer
    x = 5,884.78

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Why These Related Problems?

These problems maintain the same ratio (1.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.