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Finding the Fourth Proportional to 4,255.57, 6,397.94 and 3,934.81

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Solution

The fourth proportional to 4,255.57, 6,397.94 and 3,934.81 is: 5,915.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,255.57 : 6,397.94 = 3,934.81 : x
  2. Step 2: Convert to fraction form
    4,255.57/6,397.94 = 3,934.81/x
  3. Step 3: Cross multiply
    4,255.57x = 6,397.94 × 3,934.81
  4. Step 4: Simplify right side
    4,255.57x = 25,174,678.29
  5. Step 5: Solve for x
    x = 25,174,678.29/4,255.57
  6. Step 6: Final answer
    x = 5,915.70

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