Home / 3,831.35-5,287.64-2,340.27

Finding the Fourth Proportional to 3,831.35, 5,287.64 and 2,340.27

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Solution

The fourth proportional to 3,831.35, 5,287.64 and 2,340.27 is: 3,229.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.35 : 5,287.64 = 2,340.27 : x
  2. Step 2: Convert to fraction form
    3,831.35/5,287.64 = 2,340.27/x
  3. Step 3: Cross multiply
    3,831.35x = 5,287.64 × 2,340.27
  4. Step 4: Simplify right side
    3,831.35x = 12,374,493.56
  5. Step 5: Solve for x
    x = 12,374,493.56/3,831.35
  6. Step 6: Final answer
    x = 3,229.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.