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Finding the Fourth Proportional to 5,993.28, 8,980.56 and 3,909.60

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Solution

The fourth proportional to 5,993.28, 8,980.56 and 3,909.60 is: 5,858.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,993.28 : 8,980.56 = 3,909.60 : x
  2. Step 2: Convert to fraction form
    5,993.28/8,980.56 = 3,909.60/x
  3. Step 3: Cross multiply
    5,993.28x = 8,980.56 × 3,909.60
  4. Step 4: Simplify right side
    5,993.28x = 35,110,397.38
  5. Step 5: Solve for x
    x = 35,110,397.38/5,993.28
  6. Step 6: Final answer
    x = 5,858.29

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