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Finding the Fourth Proportional to 7,255.99, 10,883.97 and 1,991.05

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Solution

The fourth proportional to 7,255.99, 10,883.97 and 1,991.05 is: 2,986.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,255.99 : 10,883.97 = 1,991.05 : x
  2. Step 2: Convert to fraction form
    7,255.99/10,883.97 = 1,991.05/x
  3. Step 3: Cross multiply
    7,255.99x = 10,883.97 × 1,991.05
  4. Step 4: Simplify right side
    7,255.99x = 21,670,562.48
  5. Step 5: Solve for x
    x = 21,670,562.48/7,255.99
  6. Step 6: Final answer
    x = 2,986.58

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