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Finding the Third Proportional to 3,155.58 and 6,637.59

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Solution

The third proportional to 3,155.58 and 6,637.59 is: 13,961.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.58 : 6,637.59 = 6,637.59 : x
  2. Step 2: Convert to fraction form
    3,155.58/6,637.59 = 6,637.59/x
  3. Step 3: Cross multiply
    3,155.58x = 6,637.59 × 6,637.59
  4. Step 4: Simplify right side
    3,155.58x = 44,057,650.79
  5. Step 5: Solve for x
    x = 44,057,650.79/3,155.58
  6. Step 6: Final answer
    x = 13,961.83

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.