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Finding the Fourth Proportional to 3,963.72, 5,919.56 and 3,184.91

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Solution

The fourth proportional to 3,963.72, 5,919.56 and 3,184.91 is: 4,756.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,963.72 : 5,919.56 = 3,184.91 : x
  2. Step 2: Convert to fraction form
    3,963.72/5,919.56 = 3,184.91/x
  3. Step 3: Cross multiply
    3,963.72x = 5,919.56 × 3,184.91
  4. Step 4: Simplify right side
    3,963.72x = 18,853,265.84
  5. Step 5: Solve for x
    x = 18,853,265.84/3,963.72
  6. Step 6: Final answer
    x = 4,756.46

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