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Finding the Third Proportional to 3,754.69 and 5,438.39

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Solution

The third proportional to 3,754.69 and 5,438.39 is: 7,877.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,754.69 : 5,438.39 = 5,438.39 : x
  2. Step 2: Convert to fraction form
    3,754.69/5,438.39 = 5,438.39/x
  3. Step 3: Cross multiply
    3,754.69x = 5,438.39 × 5,438.39
  4. Step 4: Simplify right side
    3,754.69x = 29,576,092.59
  5. Step 5: Solve for x
    x = 29,576,092.59/3,754.69
  6. Step 6: Final answer
    x = 7,877.11

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.