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Finding the Third Proportional to 3,177.25 and 4,789.25

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Solution

The third proportional to 3,177.25 and 4,789.25 is: 7,219.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.25 : 4,789.25 = 4,789.25 : x
  2. Step 2: Convert to fraction form
    3,177.25/4,789.25 = 4,789.25/x
  3. Step 3: Cross multiply
    3,177.25x = 4,789.25 × 4,789.25
  4. Step 4: Simplify right side
    3,177.25x = 22,936,915.56
  5. Step 5: Solve for x
    x = 22,936,915.56/3,177.25
  6. Step 6: Final answer
    x = 7,219.11

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.