Home / 4,321.92-6,487.40-3,831.48

Finding the Fourth Proportional to 4,321.92, 6,487.40 and 3,831.48

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Solution

The fourth proportional to 4,321.92, 6,487.40 and 3,831.48 is: 5,751.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,321.92 : 6,487.40 = 3,831.48 : x
  2. Step 2: Convert to fraction form
    4,321.92/6,487.40 = 3,831.48/x
  3. Step 3: Cross multiply
    4,321.92x = 6,487.40 × 3,831.48
  4. Step 4: Simplify right side
    4,321.92x = 24,856,343.35
  5. Step 5: Solve for x
    x = 24,856,343.35/4,321.92
  6. Step 6: Final answer
    x = 5,751.23

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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.