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Finding the Fourth Proportional to 3,572.12, 5,358.18 and 1,839.56

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Solution

The fourth proportional to 3,572.12, 5,358.18 and 1,839.56 is: 2,759.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572.12 : 5,358.18 = 1,839.56 : x
  2. Step 2: Convert to fraction form
    3,572.12/5,358.18 = 1,839.56/x
  3. Step 3: Cross multiply
    3,572.12x = 5,358.18 × 1,839.56
  4. Step 4: Simplify right side
    3,572.12x = 9,856,693.60
  5. Step 5: Solve for x
    x = 9,856,693.60/3,572.12
  6. Step 6: Final answer
    x = 2,759.34

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