Home / 3,844.27-5,765.77-1,378.72

Finding the Fourth Proportional to 3,844.27, 5,765.77 and 1,378.72

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Solution

The fourth proportional to 3,844.27, 5,765.77 and 1,378.72 is: 2,067.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,844.27 : 5,765.77 = 1,378.72 : x
  2. Step 2: Convert to fraction form
    3,844.27/5,765.77 = 1,378.72/x
  3. Step 3: Cross multiply
    3,844.27x = 5,765.77 × 1,378.72
  4. Step 4: Simplify right side
    3,844.27x = 7,949,382.41
  5. Step 5: Solve for x
    x = 7,949,382.41/3,844.27
  6. Step 6: Final answer
    x = 2,067.85

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