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Finding the Fourth Proportional to 3,781.53, 5,672.90 and 1,008.44

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Solution

The fourth proportional to 3,781.53, 5,672.90 and 1,008.44 is: 1,512.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.53 : 5,672.90 = 1,008.44 : x
  2. Step 2: Convert to fraction form
    3,781.53/5,672.90 = 1,008.44/x
  3. Step 3: Cross multiply
    3,781.53x = 5,672.90 × 1,008.44
  4. Step 4: Simplify right side
    3,781.53x = 5,720,745.87
  5. Step 5: Solve for x
    x = 5,720,745.87/3,781.53
  6. Step 6: Final answer
    x = 1,512.81

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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.