Home / 3,831.80-5,747.70-3,255.80

Finding the Fourth Proportional to 3,831.80, 5,747.70 and 3,255.80

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Solution

The fourth proportional to 3,831.80, 5,747.70 and 3,255.80 is: 4,883.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.80 : 5,747.70 = 3,255.80 : x
  2. Step 2: Convert to fraction form
    3,831.80/5,747.70 = 3,255.80/x
  3. Step 3: Cross multiply
    3,831.80x = 5,747.70 × 3,255.80
  4. Step 4: Simplify right side
    3,831.80x = 18,713,361.66
  5. Step 5: Solve for x
    x = 18,713,361.66/3,831.80
  6. Step 6: Final answer
    x = 4,883.70

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1.5x scale

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.