Home / 3,831.09-5,743.34-1,331.95

Finding the Fourth Proportional to 3,831.09, 5,743.34 and 1,331.95

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Solution

The fourth proportional to 3,831.09, 5,743.34 and 1,331.95 is: 1,996.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.09 : 5,743.34 = 1,331.95 : x
  2. Step 2: Convert to fraction form
    3,831.09/5,743.34 = 1,331.95/x
  3. Step 3: Cross multiply
    3,831.09x = 5,743.34 × 1,331.95
  4. Step 4: Simplify right side
    3,831.09x = 7,649,845.04
  5. Step 5: Solve for x
    x = 7,649,845.04/3,831.09
  6. Step 6: Final answer
    x = 1,996.78

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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.