Home / 5,085.92-7,631.76-2,163.92

Finding the Fourth Proportional to 5,085.92, 7,631.76 and 2,163.92

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Solution

The fourth proportional to 5,085.92, 7,631.76 and 2,163.92 is: 3,247.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,085.92 : 7,631.76 = 2,163.92 : x
  2. Step 2: Convert to fraction form
    5,085.92/7,631.76 = 2,163.92/x
  3. Step 3: Cross multiply
    5,085.92x = 7,631.76 × 2,163.92
  4. Step 4: Simplify right side
    5,085.92x = 16,514,518.10
  5. Step 5: Solve for x
    x = 16,514,518.10/5,085.92
  6. Step 6: Final answer
    x = 3,247.11

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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.