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Finding the Fourth Proportional to 3,607.53, 5,410.84 and 1,142.61

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Solution

The fourth proportional to 3,607.53, 5,410.84 and 1,142.61 is: 1,713.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,607.53 : 5,410.84 = 1,142.61 : x
  2. Step 2: Convert to fraction form
    3,607.53/5,410.84 = 1,142.61/x
  3. Step 3: Cross multiply
    3,607.53x = 5,410.84 × 1,142.61
  4. Step 4: Simplify right side
    3,607.53x = 6,182,479.89
  5. Step 5: Solve for x
    x = 6,182,479.89/3,607.53
  6. Step 6: Final answer
    x = 1,713.77

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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.