Home / 3,831.87-5,287.80-2,342.28

Finding the Fourth Proportional to 3,831.87, 5,287.80 and 2,342.28

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Solution

The fourth proportional to 3,831.87, 5,287.80 and 2,342.28 is: 3,232.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.87 : 5,287.80 = 2,342.28 : x
  2. Step 2: Convert to fraction form
    3,831.87/5,287.80 = 2,342.28/x
  3. Step 3: Cross multiply
    3,831.87x = 5,287.80 × 2,342.28
  4. Step 4: Simplify right side
    3,831.87x = 12,385,508.18
  5. Step 5: Solve for x
    x = 12,385,508.18/3,831.87
  6. Step 6: Final answer
    x = 3,232.24

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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.