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Finding the Fourth Proportional to 3,315.08, 4,968.14 and 1,261.96

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Solution

The fourth proportional to 3,315.08, 4,968.14 and 1,261.96 is: 1,891.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.08 : 4,968.14 = 1,261.96 : x
  2. Step 2: Convert to fraction form
    3,315.08/4,968.14 = 1,261.96/x
  3. Step 3: Cross multiply
    3,315.08x = 4,968.14 × 1,261.96
  4. Step 4: Simplify right side
    3,315.08x = 6,269,593.95
  5. Step 5: Solve for x
    x = 6,269,593.95/3,315.08
  6. Step 6: Final answer
    x = 1,891.23

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