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Finding the Fourth Proportional to 2,891.43, 4,338.80 and 2,867.94

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Solution

The fourth proportional to 2,891.43, 4,338.80 and 2,867.94 is: 4,303.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891.43 : 4,338.80 = 2,867.94 : x
  2. Step 2: Convert to fraction form
    2,891.43/4,338.80 = 2,867.94/x
  3. Step 3: Cross multiply
    2,891.43x = 4,338.80 × 2,867.94
  4. Step 4: Simplify right side
    2,891.43x = 12,443,418.07
  5. Step 5: Solve for x
    x = 12,443,418.07/2,891.43
  6. Step 6: Final answer
    x = 4,303.55

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