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Finding the Fourth Proportional to 3,879.95, 5,821.14 and 2,494.85

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Solution

The fourth proportional to 3,879.95, 5,821.14 and 2,494.85 is: 3,743.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.95 : 5,821.14 = 2,494.85 : x
  2. Step 2: Convert to fraction form
    3,879.95/5,821.14 = 2,494.85/x
  3. Step 3: Cross multiply
    3,879.95x = 5,821.14 × 2,494.85
  4. Step 4: Simplify right side
    3,879.95x = 14,522,887.24
  5. Step 5: Solve for x
    x = 14,522,887.24/3,879.95
  6. Step 6: Final answer
    x = 3,743.06

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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.