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Finding the Third Proportional to 3,129.75 and 6,841.13

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Solution

The third proportional to 3,129.75 and 6,841.13 is: 14,953.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.75 : 6,841.13 = 6,841.13 : x
  2. Step 2: Convert to fraction form
    3,129.75/6,841.13 = 6,841.13/x
  3. Step 3: Cross multiply
    3,129.75x = 6,841.13 × 6,841.13
  4. Step 4: Simplify right side
    3,129.75x = 46,800,991.27
  5. Step 5: Solve for x
    x = 46,800,991.27/3,129.75
  6. Step 6: Final answer
    x = 14,953.59

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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.