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Finding the Fourth Proportional to 6,087.78, 9,115.20 and 3,159.93

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Solution

The fourth proportional to 6,087.78, 9,115.20 and 3,159.93 is: 4,731.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,087.78 : 9,115.20 = 3,159.93 : x
  2. Step 2: Convert to fraction form
    6,087.78/9,115.20 = 3,159.93/x
  3. Step 3: Cross multiply
    6,087.78x = 9,115.20 × 3,159.93
  4. Step 4: Simplify right side
    6,087.78x = 28,803,393.94
  5. Step 5: Solve for x
    x = 28,803,393.94/6,087.78
  6. Step 6: Final answer
    x = 4,731.35

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