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Finding the Fourth Proportional to 3,921.53, 5,879.94 and 1,841.99

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Solution

The fourth proportional to 3,921.53, 5,879.94 and 1,841.99 is: 2,761.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.53 : 5,879.94 = 1,841.99 : x
  2. Step 2: Convert to fraction form
    3,921.53/5,879.94 = 1,841.99/x
  3. Step 3: Cross multiply
    3,921.53x = 5,879.94 × 1,841.99
  4. Step 4: Simplify right side
    3,921.53x = 10,830,790.68
  5. Step 5: Solve for x
    x = 10,830,790.68/3,921.53
  6. Step 6: Final answer
    x = 2,761.88

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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.