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Finding the Fourth Proportional to 3,198.11, 4,797.44 and 977.44

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Solution

The fourth proportional to 3,198.11, 4,797.44 and 977.44 is: 1,466.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.11 : 4,797.44 = 977.44 : x
  2. Step 2: Convert to fraction form
    3,198.11/4,797.44 = 977.44/x
  3. Step 3: Cross multiply
    3,198.11x = 4,797.44 × 977.44
  4. Step 4: Simplify right side
    3,198.11x = 4,689,209.75
  5. Step 5: Solve for x
    x = 4,689,209.75/3,198.11
  6. Step 6: Final answer
    x = 1,466.24

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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.