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Finding the Fourth Proportional to 3,297.60, 4,949.20 and 1,351.20

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Solution

The fourth proportional to 3,297.60, 4,949.20 and 1,351.20 is: 2,027.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,297.60 : 4,949.20 = 1,351.20 : x
  2. Step 2: Convert to fraction form
    3,297.60/4,949.20 = 1,351.20/x
  3. Step 3: Cross multiply
    3,297.60x = 4,949.20 × 1,351.20
  4. Step 4: Simplify right side
    3,297.60x = 6,687,359.04
  5. Step 5: Solve for x
    x = 6,687,359.04/3,297.60
  6. Step 6: Final answer
    x = 2,027.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.