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Finding the Fourth Proportional to 3,986.38, 5,979.51 and 1,793.56

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Solution

The fourth proportional to 3,986.38, 5,979.51 and 1,793.56 is: 2,690.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986.38 : 5,979.51 = 1,793.56 : x
  2. Step 2: Convert to fraction form
    3,986.38/5,979.51 = 1,793.56/x
  3. Step 3: Cross multiply
    3,986.38x = 5,979.51 × 1,793.56
  4. Step 4: Simplify right side
    3,986.38x = 10,724,609.96
  5. Step 5: Solve for x
    x = 10,724,609.96/3,986.38
  6. Step 6: Final answer
    x = 2,690.31

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