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Finding the Third Proportional to 2,179.50 and 3,177.75

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Solution

The third proportional to 2,179.50 and 3,177.75 is: 4,633.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.50 : 3,177.75 = 3,177.75 : x
  2. Step 2: Convert to fraction form
    2,179.50/3,177.75 = 3,177.75/x
  3. Step 3: Cross multiply
    2,179.50x = 3,177.75 × 3,177.75
  4. Step 4: Simplify right side
    2,179.50x = 10,098,095.06
  5. Step 5: Solve for x
    x = 10,098,095.06/2,179.50
  6. Step 6: Final answer
    x = 4,633.22

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.