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Finding the Fourth Proportional to 2,822.70, 4,230.80 and 1,521.44

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Solution

The fourth proportional to 2,822.70, 4,230.80 and 1,521.44 is: 2,280.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,822.70 : 4,230.80 = 1,521.44 : x
  2. Step 2: Convert to fraction form
    2,822.70/4,230.80 = 1,521.44/x
  3. Step 3: Cross multiply
    2,822.70x = 4,230.80 × 1,521.44
  4. Step 4: Simplify right side
    2,822.70x = 6,436,908.35
  5. Step 5: Solve for x
    x = 6,436,908.35/2,822.70
  6. Step 6: Final answer
    x = 2,280.41

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