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Finding the Fourth Proportional to 2,922.12, 4,375.20 and 2,433.60

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Solution

The fourth proportional to 2,922.12, 4,375.20 and 2,433.60 is: 3,643.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,922.12 : 4,375.20 = 2,433.60 : x
  2. Step 2: Convert to fraction form
    2,922.12/4,375.20 = 2,433.60/x
  3. Step 3: Cross multiply
    2,922.12x = 4,375.20 × 2,433.60
  4. Step 4: Simplify right side
    2,922.12x = 10,647,486.72
  5. Step 5: Solve for x
    x = 10,647,486.72/2,922.12
  6. Step 6: Final answer
    x = 3,643.75

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