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Finding the Fourth Proportional to 3,884.61, 5,823.12 and 1,543.86

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Solution

The fourth proportional to 3,884.61, 5,823.12 and 1,543.86 is: 2,314.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,884.61 : 5,823.12 = 1,543.86 : x
  2. Step 2: Convert to fraction form
    3,884.61/5,823.12 = 1,543.86/x
  3. Step 3: Cross multiply
    3,884.61x = 5,823.12 × 1,543.86
  4. Step 4: Simplify right side
    3,884.61x = 8,990,082.04
  5. Step 5: Solve for x
    x = 8,990,082.04/3,884.61
  6. Step 6: Final answer
    x = 2,314.28

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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.