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Finding the Third Proportional to 3,142.88 and 6,860.63

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Solution

The third proportional to 3,142.88 and 6,860.63 is: 14,976.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.88 : 6,860.63 = 6,860.63 : x
  2. Step 2: Convert to fraction form
    3,142.88/6,860.63 = 6,860.63/x
  3. Step 3: Cross multiply
    3,142.88x = 6,860.63 × 6,860.63
  4. Step 4: Simplify right side
    3,142.88x = 47,068,175.39
  5. Step 5: Solve for x
    x = 47,068,175.39/3,142.88
  6. Step 6: Final answer
    x = 14,976.15

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.