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Finding the Third Proportional to 3,904.88 and 9,175.78

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Solution

The third proportional to 3,904.88 and 9,175.78 is: 21,561.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.88 : 9,175.78 = 9,175.78 : x
  2. Step 2: Convert to fraction form
    3,904.88/9,175.78 = 9,175.78/x
  3. Step 3: Cross multiply
    3,904.88x = 9,175.78 × 9,175.78
  4. Step 4: Simplify right side
    3,904.88x = 84,194,961.55
  5. Step 5: Solve for x
    x = 84,194,961.55/3,904.88
  6. Step 6: Final answer
    x = 21,561.50

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.