Home / 2,879.52-4,311.78-2,638.96

Finding the Fourth Proportional to 2,879.52, 4,311.78 and 2,638.96

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Solution

The fourth proportional to 2,879.52, 4,311.78 and 2,638.96 is: 3,951.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.52 : 4,311.78 = 2,638.96 : x
  2. Step 2: Convert to fraction form
    2,879.52/4,311.78 = 2,638.96/x
  3. Step 3: Cross multiply
    2,879.52x = 4,311.78 × 2,638.96
  4. Step 4: Simplify right side
    2,879.52x = 11,378,614.95
  5. Step 5: Solve for x
    x = 11,378,614.95/2,879.52
  6. Step 6: Final answer
    x = 3,951.57

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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.