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Finding the Fourth Proportional to 3,755.04, 5,631.13 and 1,255.71

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Solution

The fourth proportional to 3,755.04, 5,631.13 and 1,255.71 is: 1,883.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,755.04 : 5,631.13 = 1,255.71 : x
  2. Step 2: Convert to fraction form
    3,755.04/5,631.13 = 1,255.71/x
  3. Step 3: Cross multiply
    3,755.04x = 5,631.13 × 1,255.71
  4. Step 4: Simplify right side
    3,755.04x = 7,071,066.25
  5. Step 5: Solve for x
    x = 7,071,066.25/3,755.04
  6. Step 6: Final answer
    x = 1,883.09

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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.