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Finding the Fourth Proportional to 6,918.72, 10,375.80 and 2,757.48

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Solution

The fourth proportional to 6,918.72, 10,375.80 and 2,757.48 is: 4,135.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.72 : 10,375.80 = 2,757.48 : x
  2. Step 2: Convert to fraction form
    6,918.72/10,375.80 = 2,757.48/x
  3. Step 3: Cross multiply
    6,918.72x = 10,375.80 × 2,757.48
  4. Step 4: Simplify right side
    6,918.72x = 28,611,060.98
  5. Step 5: Solve for x
    x = 28,611,060.98/6,918.72
  6. Step 6: Final answer
    x = 4,135.31

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