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Finding the Fourth Proportional to 3,197.64, 4,797.88 and 1,249.20

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Solution

The fourth proportional to 3,197.64, 4,797.88 and 1,249.20 is: 1,874.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,197.64 : 4,797.88 = 1,249.20 : x
  2. Step 2: Convert to fraction form
    3,197.64/4,797.88 = 1,249.20/x
  3. Step 3: Cross multiply
    3,197.64x = 4,797.88 × 1,249.20
  4. Step 4: Simplify right side
    3,197.64x = 5,993,511.70
  5. Step 5: Solve for x
    x = 5,993,511.70/3,197.64
  6. Step 6: Final answer
    x = 1,874.35

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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.