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Finding the Fourth Proportional to 3,699.55, 5,535.43 and 2,213.31

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Solution

The fourth proportional to 3,699.55, 5,535.43 and 2,213.31 is: 3,311.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,699.55 : 5,535.43 = 2,213.31 : x
  2. Step 2: Convert to fraction form
    3,699.55/5,535.43 = 2,213.31/x
  3. Step 3: Cross multiply
    3,699.55x = 5,535.43 × 2,213.31
  4. Step 4: Simplify right side
    3,699.55x = 12,251,583.83
  5. Step 5: Solve for x
    x = 12,251,583.83/3,699.55
  6. Step 6: Final answer
    x = 3,311.64

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