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Finding the Fourth Proportional to 6,623.88, 9,940.37 and 2,728.28

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Solution

The fourth proportional to 6,623.88, 9,940.37 and 2,728.28 is: 4,094.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,623.88 : 9,940.37 = 2,728.28 : x
  2. Step 2: Convert to fraction form
    6,623.88/9,940.37 = 2,728.28/x
  3. Step 3: Cross multiply
    6,623.88x = 9,940.37 × 2,728.28
  4. Step 4: Simplify right side
    6,623.88x = 27,120,112.66
  5. Step 5: Solve for x
    x = 27,120,112.66/6,623.88
  6. Step 6: Final answer
    x = 4,094.29

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