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Finding the Fourth Proportional to 5,978.61, 8,965.49 and 2,082.11

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Solution

The fourth proportional to 5,978.61, 8,965.49 and 2,082.11 is: 3,122.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,978.61 : 8,965.49 = 2,082.11 : x
  2. Step 2: Convert to fraction form
    5,978.61/8,965.49 = 2,082.11/x
  3. Step 3: Cross multiply
    5,978.61x = 8,965.49 × 2,082.11
  4. Step 4: Simplify right side
    5,978.61x = 18,667,081.15
  5. Step 5: Solve for x
    x = 18,667,081.15/5,978.61
  6. Step 6: Final answer
    x = 3,122.31

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