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Finding the Fourth Proportional to 2,879.52, 4,324.49 and 2,647.98

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Solution

The fourth proportional to 2,879.52, 4,324.49 and 2,647.98 is: 3,976.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.52 : 4,324.49 = 2,647.98 : x
  2. Step 2: Convert to fraction form
    2,879.52/4,324.49 = 2,647.98/x
  3. Step 3: Cross multiply
    2,879.52x = 4,324.49 × 2,647.98
  4. Step 4: Simplify right side
    2,879.52x = 11,451,149.79
  5. Step 5: Solve for x
    x = 11,451,149.79/2,879.52
  6. Step 6: Final answer
    x = 3,976.76

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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.