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Finding the Fourth Proportional to 3,445.78, 4,755.14 and 1,873.88

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Solution

The fourth proportional to 3,445.78, 4,755.14 and 1,873.88 is: 2,585.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,445.78 : 4,755.14 = 1,873.88 : x
  2. Step 2: Convert to fraction form
    3,445.78/4,755.14 = 1,873.88/x
  3. Step 3: Cross multiply
    3,445.78x = 4,755.14 × 1,873.88
  4. Step 4: Simplify right side
    3,445.78x = 8,910,561.74
  5. Step 5: Solve for x
    x = 8,910,561.74/3,445.78
  6. Step 6: Final answer
    x = 2,585.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.