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Finding the Fourth Proportional to 2,625.91, 3,939.42 and 2,196.07

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Solution

The fourth proportional to 2,625.91, 3,939.42 and 2,196.07 is: 3,294.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,625.91 : 3,939.42 = 2,196.07 : x
  2. Step 2: Convert to fraction form
    2,625.91/3,939.42 = 2,196.07/x
  3. Step 3: Cross multiply
    2,625.91x = 3,939.42 × 2,196.07
  4. Step 4: Simplify right side
    2,625.91x = 8,651,242.08
  5. Step 5: Solve for x
    x = 8,651,242.08/2,625.91
  6. Step 6: Final answer
    x = 3,294.57

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