Home / 4,120.25-6,171.53-3,831.71

Finding the Fourth Proportional to 4,120.25, 6,171.53 and 3,831.71

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Solution

The fourth proportional to 4,120.25, 6,171.53 and 3,831.71 is: 5,739.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.25 : 6,171.53 = 3,831.71 : x
  2. Step 2: Convert to fraction form
    4,120.25/6,171.53 = 3,831.71/x
  3. Step 3: Cross multiply
    4,120.25x = 6,171.53 × 3,831.71
  4. Step 4: Simplify right side
    4,120.25x = 23,647,463.20
  5. Step 5: Solve for x
    x = 23,647,463.20/4,120.25
  6. Step 6: Final answer
    x = 5,739.33

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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.