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Finding the Fourth Proportional to 3,879.73, 5,821.94 and 2,400.94

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Solution

The fourth proportional to 3,879.73, 5,821.94 and 2,400.94 is: 3,602.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.73 : 5,821.94 = 2,400.94 : x
  2. Step 2: Convert to fraction form
    3,879.73/5,821.94 = 2,400.94/x
  3. Step 3: Cross multiply
    3,879.73x = 5,821.94 × 2,400.94
  4. Step 4: Simplify right side
    3,879.73x = 13,978,128.62
  5. Step 5: Solve for x
    x = 13,978,128.62/3,879.73
  6. Step 6: Final answer
    x = 3,602.86

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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.