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Finding the Third Proportional to 3,135.38 and 6,876.56

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Solution

The third proportional to 3,135.38 and 6,876.56 is: 15,081.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.38 : 6,876.56 = 6,876.56 : x
  2. Step 2: Convert to fraction form
    3,135.38/6,876.56 = 6,876.56/x
  3. Step 3: Cross multiply
    3,135.38x = 6,876.56 × 6,876.56
  4. Step 4: Simplify right side
    3,135.38x = 47,287,111.82
  5. Step 5: Solve for x
    x = 47,287,111.82/3,135.38
  6. Step 6: Final answer
    x = 15,081.80

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.