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Finding the Third Proportional to 2,478.38 and 4,893.75

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Solution

The third proportional to 2,478.38 and 4,893.75 is: 9,663.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478.38 : 4,893.75 = 4,893.75 : x
  2. Step 2: Convert to fraction form
    2,478.38/4,893.75 = 4,893.75/x
  3. Step 3: Cross multiply
    2,478.38x = 4,893.75 × 4,893.75
  4. Step 4: Simplify right side
    2,478.38x = 23,948,789.06
  5. Step 5: Solve for x
    x = 23,948,789.06/2,478.38
  6. Step 6: Final answer
    x = 9,663.10

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.