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Finding the Fourth Proportional to 3,983.28, 5,975.16 and 3,116.04

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Solution

The fourth proportional to 3,983.28, 5,975.16 and 3,116.04 is: 4,674.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.28 : 5,975.16 = 3,116.04 : x
  2. Step 2: Convert to fraction form
    3,983.28/5,975.16 = 3,116.04/x
  3. Step 3: Cross multiply
    3,983.28x = 5,975.16 × 3,116.04
  4. Step 4: Simplify right side
    3,983.28x = 18,618,837.57
  5. Step 5: Solve for x
    x = 18,618,837.57/3,983.28
  6. Step 6: Final answer
    x = 4,674.25

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