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Finding the Fourth Proportional to 7,700.75, 11,550.67 and 2,153.97

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Solution

The fourth proportional to 7,700.75, 11,550.67 and 2,153.97 is: 3,230.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,700.75 : 11,550.67 = 2,153.97 : x
  2. Step 2: Convert to fraction form
    7,700.75/11,550.67 = 2,153.97/x
  3. Step 3: Cross multiply
    7,700.75x = 11,550.67 × 2,153.97
  4. Step 4: Simplify right side
    7,700.75x = 24,879,796.66
  5. Step 5: Solve for x
    x = 24,879,796.66/7,700.75
  6. Step 6: Final answer
    x = 3,230.83

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