Home / 3,214.80-4,831.68-2,178.24

Finding the Fourth Proportional to 3,214.80, 4,831.68 and 2,178.24

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Solution

The fourth proportional to 3,214.80, 4,831.68 and 2,178.24 is: 3,273.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,214.80 : 4,831.68 = 2,178.24 : x
  2. Step 2: Convert to fraction form
    3,214.80/4,831.68 = 2,178.24/x
  3. Step 3: Cross multiply
    3,214.80x = 4,831.68 × 2,178.24
  4. Step 4: Simplify right side
    3,214.80x = 10,524,558.64
  5. Step 5: Solve for x
    x = 10,524,558.64/3,214.80
  6. Step 6: Final answer
    x = 3,273.78

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