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Finding the Fourth Proportional to 5,294.21, 7,935.95 and 3,321.23

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Solution

The fourth proportional to 5,294.21, 7,935.95 and 3,321.23 is: 4,978.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,294.21 : 7,935.95 = 3,321.23 : x
  2. Step 2: Convert to fraction form
    5,294.21/7,935.95 = 3,321.23/x
  3. Step 3: Cross multiply
    5,294.21x = 7,935.95 × 3,321.23
  4. Step 4: Simplify right side
    5,294.21x = 26,357,083.84
  5. Step 5: Solve for x
    x = 26,357,083.84/5,294.21
  6. Step 6: Final answer
    x = 4,978.48

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