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Finding the Fourth Proportional to 3,329.68, 4,986.72 and 1,682.20

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Solution

The fourth proportional to 3,329.68, 4,986.72 and 1,682.20 is: 2,519.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,329.68 : 4,986.72 = 1,682.20 : x
  2. Step 2: Convert to fraction form
    3,329.68/4,986.72 = 1,682.20/x
  3. Step 3: Cross multiply
    3,329.68x = 4,986.72 × 1,682.20
  4. Step 4: Simplify right side
    3,329.68x = 8,388,660.38
  5. Step 5: Solve for x
    x = 8,388,660.38/3,329.68
  6. Step 6: Final answer
    x = 2,519.36

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