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Finding the Fourth Proportional to 3,198.87, 4,798.76 and 1,006.86

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Solution

The fourth proportional to 3,198.87, 4,798.76 and 1,006.86 is: 1,510.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.87 : 4,798.76 = 1,006.86 : x
  2. Step 2: Convert to fraction form
    3,198.87/4,798.76 = 1,006.86/x
  3. Step 3: Cross multiply
    3,198.87x = 4,798.76 × 1,006.86
  4. Step 4: Simplify right side
    3,198.87x = 4,831,679.49
  5. Step 5: Solve for x
    x = 4,831,679.49/3,198.87
  6. Step 6: Final answer
    x = 1,510.43

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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.