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Finding the Fourth Proportional to 3,630.86, 5,444.63 and 1,876.87

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Solution

The fourth proportional to 3,630.86, 5,444.63 and 1,876.87 is: 2,814.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.86 : 5,444.63 = 1,876.87 : x
  2. Step 2: Convert to fraction form
    3,630.86/5,444.63 = 1,876.87/x
  3. Step 3: Cross multiply
    3,630.86x = 5,444.63 × 1,876.87
  4. Step 4: Simplify right side
    3,630.86x = 10,218,826.10
  5. Step 5: Solve for x
    x = 10,218,826.10/3,630.86
  6. Step 6: Final answer
    x = 2,814.44

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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.