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Finding the Fourth Proportional to 5,760.78, 7,949.75 and 3,208.52

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Solution

The fourth proportional to 5,760.78, 7,949.75 and 3,208.52 is: 4,427.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,760.78 : 7,949.75 = 3,208.52 : x
  2. Step 2: Convert to fraction form
    5,760.78/7,949.75 = 3,208.52/x
  3. Step 3: Cross multiply
    5,760.78x = 7,949.75 × 3,208.52
  4. Step 4: Simplify right side
    5,760.78x = 25,506,876.08
  5. Step 5: Solve for x
    x = 25,506,876.08/5,760.78
  6. Step 6: Final answer
    x = 4,427.68

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