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Finding the Fourth Proportional to 3,661.61, 5,047.11 and 2,863.52

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Solution

The fourth proportional to 3,661.61, 5,047.11 and 2,863.52 is: 3,947.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,661.61 : 5,047.11 = 2,863.52 : x
  2. Step 2: Convert to fraction form
    3,661.61/5,047.11 = 2,863.52/x
  3. Step 3: Cross multiply
    3,661.61x = 5,047.11 × 2,863.52
  4. Step 4: Simplify right side
    3,661.61x = 14,452,500.43
  5. Step 5: Solve for x
    x = 14,452,500.43/3,661.61
  6. Step 6: Final answer
    x = 3,947.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.