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Finding the Fourth Proportional to 3,943.56, 5,919 and 1,997.16

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Solution

The fourth proportional to 3,943.56, 5,919 and 1,997.16 is: 2,997.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.56 : 5,919 = 1,997.16 : x
  2. Step 2: Convert to fraction form
    3,943.56/5,919 = 1,997.16/x
  3. Step 3: Cross multiply
    3,943.56x = 5,919 × 1,997.16
  4. Step 4: Simplify right side
    3,943.56x = 11,821,190.04
  5. Step 5: Solve for x
    x = 11,821,190.04/3,943.56
  6. Step 6: Final answer
    x = 2,997.59

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