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Finding the Fourth Proportional to 2,568.71, 3,853.08 and 620.91

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Solution

The fourth proportional to 2,568.71, 3,853.08 and 620.91 is: 931.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,568.71 : 3,853.08 = 620.91 : x
  2. Step 2: Convert to fraction form
    2,568.71/3,853.08 = 620.91/x
  3. Step 3: Cross multiply
    2,568.71x = 3,853.08 × 620.91
  4. Step 4: Simplify right side
    2,568.71x = 2,392,415.90
  5. Step 5: Solve for x
    x = 2,392,415.90/2,568.71
  6. Step 6: Final answer
    x = 931.37

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