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Finding the Third Proportional to 3,042.50 and 6,478

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Solution

The third proportional to 3,042.50 and 6,478 is: 13,792.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,042.50 : 6,478 = 6,478 : x
  2. Step 2: Convert to fraction form
    3,042.50/6,478 = 6,478/x
  3. Step 3: Cross multiply
    3,042.50x = 6,478 × 6,478
  4. Step 4: Simplify right side
    3,042.50x = 41,964,484
  5. Step 5: Solve for x
    x = 41,964,484/3,042.50
  6. Step 6: Final answer
    x = 13,792.76

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.