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Finding the Fourth Proportional to 2,611.71, 3,918.17 and 1,517.00

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Solution

The fourth proportional to 2,611.71, 3,918.17 and 1,517.00 is: 2,275.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,611.71 : 3,918.17 = 1,517.00 : x
  2. Step 2: Convert to fraction form
    2,611.71/3,918.17 = 1,517.00/x
  3. Step 3: Cross multiply
    2,611.71x = 3,918.17 × 1,517.00
  4. Step 4: Simplify right side
    2,611.71x = 5,943,848.09
  5. Step 5: Solve for x
    x = 5,943,848.09/2,611.71
  6. Step 6: Final answer
    x = 2,275.85

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