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Finding the Fourth Proportional to 5,493.76, 8,238.20 and 3,948.28

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Solution

The fourth proportional to 5,493.76, 8,238.20 and 3,948.28 is: 5,920.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,493.76 : 8,238.20 = 3,948.28 : x
  2. Step 2: Convert to fraction form
    5,493.76/8,238.20 = 3,948.28/x
  3. Step 3: Cross multiply
    5,493.76x = 8,238.20 × 3,948.28
  4. Step 4: Simplify right side
    5,493.76x = 32,526,679.96
  5. Step 5: Solve for x
    x = 32,526,679.96/5,493.76
  6. Step 6: Final answer
    x = 5,920.66

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