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Finding the Fourth Proportional to 3,381.88, 5,072.84 and 1,041.87

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Solution

The fourth proportional to 3,381.88, 5,072.84 and 1,041.87 is: 1,562.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,381.88 : 5,072.84 = 1,041.87 : x
  2. Step 2: Convert to fraction form
    3,381.88/5,072.84 = 1,041.87/x
  3. Step 3: Cross multiply
    3,381.88x = 5,072.84 × 1,041.87
  4. Step 4: Simplify right side
    3,381.88x = 5,285,239.81
  5. Step 5: Solve for x
    x = 5,285,239.81/3,381.88
  6. Step 6: Final answer
    x = 1,562.81

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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.