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Finding the Fourth Proportional to 3,401.76, 5,103.12 and 1,209.84

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Solution

The fourth proportional to 3,401.76, 5,103.12 and 1,209.84 is: 1,814.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,401.76 : 5,103.12 = 1,209.84 : x
  2. Step 2: Convert to fraction form
    3,401.76/5,103.12 = 1,209.84/x
  3. Step 3: Cross multiply
    3,401.76x = 5,103.12 × 1,209.84
  4. Step 4: Simplify right side
    3,401.76x = 6,173,958.70
  5. Step 5: Solve for x
    x = 6,173,958.70/3,401.76
  6. Step 6: Final answer
    x = 1,814.93

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