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Finding the Fourth Proportional to 3,893.97, 5,841.88 and 1,261.47

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Solution

The fourth proportional to 3,893.97, 5,841.88 and 1,261.47 is: 1,892.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,893.97 : 5,841.88 = 1,261.47 : x
  2. Step 2: Convert to fraction form
    3,893.97/5,841.88 = 1,261.47/x
  3. Step 3: Cross multiply
    3,893.97x = 5,841.88 × 1,261.47
  4. Step 4: Simplify right side
    3,893.97x = 7,369,350.06
  5. Step 5: Solve for x
    x = 7,369,350.06/3,893.97
  6. Step 6: Final answer
    x = 1,892.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.