Home / 3,198.02-4,793.96-1,638.76

Finding the Fourth Proportional to 3,198.02, 4,793.96 and 1,638.76

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Solution

The fourth proportional to 3,198.02, 4,793.96 and 1,638.76 is: 2,456.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.02 : 4,793.96 = 1,638.76 : x
  2. Step 2: Convert to fraction form
    3,198.02/4,793.96 = 1,638.76/x
  3. Step 3: Cross multiply
    3,198.02x = 4,793.96 × 1,638.76
  4. Step 4: Simplify right side
    3,198.02x = 7,856,149.89
  5. Step 5: Solve for x
    x = 7,856,149.89/3,198.02
  6. Step 6: Final answer
    x = 2,456.57

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1.5x scale

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.