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Finding the Fourth Proportional to 5,879.11, 8,815.77 and 2,914.15

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Solution

The fourth proportional to 5,879.11, 8,815.77 and 2,914.15 is: 4,369.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,879.11 : 8,815.77 = 2,914.15 : x
  2. Step 2: Convert to fraction form
    5,879.11/8,815.77 = 2,914.15/x
  3. Step 3: Cross multiply
    5,879.11x = 8,815.77 × 2,914.15
  4. Step 4: Simplify right side
    5,879.11x = 25,690,476.15
  5. Step 5: Solve for x
    x = 25,690,476.15/5,879.11
  6. Step 6: Final answer
    x = 4,369.79

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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.