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Finding the Third Proportional to 2,377 and 3,129.50

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Solution

The third proportional to 2,377 and 3,129.50 is: 4,120.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,377 : 3,129.50 = 3,129.50 : x
  2. Step 2: Convert to fraction form
    2,377/3,129.50 = 3,129.50/x
  3. Step 3: Cross multiply
    2,377x = 3,129.50 × 3,129.50
  4. Step 4: Simplify right side
    2,377x = 9,793,770.25
  5. Step 5: Solve for x
    x = 9,793,770.25/2,377
  6. Step 6: Final answer
    x = 4,120.22

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.