Home / 2,591.11-3,879.45-2,217.43

Finding the Fourth Proportional to 2,591.11, 3,879.45 and 2,217.43

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Solution

The fourth proportional to 2,591.11, 3,879.45 and 2,217.43 is: 3,319.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,591.11 : 3,879.45 = 2,217.43 : x
  2. Step 2: Convert to fraction form
    2,591.11/3,879.45 = 2,217.43/x
  3. Step 3: Cross multiply
    2,591.11x = 3,879.45 × 2,217.43
  4. Step 4: Simplify right side
    2,591.11x = 8,602,408.81
  5. Step 5: Solve for x
    x = 8,602,408.81/2,591.11
  6. Step 6: Final answer
    x = 3,319.97

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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.