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Finding the Fourth Proportional to 5,913.92, 8,868.12 and 3,449.36

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Solution

The fourth proportional to 5,913.92, 8,868.12 and 3,449.36 is: 5,172.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,913.92 : 8,868.12 = 3,449.36 : x
  2. Step 2: Convert to fraction form
    5,913.92/8,868.12 = 3,449.36/x
  3. Step 3: Cross multiply
    5,913.92x = 8,868.12 × 3,449.36
  4. Step 4: Simplify right side
    5,913.92x = 30,589,338.40
  5. Step 5: Solve for x
    x = 30,589,338.40/5,913.92
  6. Step 6: Final answer
    x = 5,172.43

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