Home / 3,198.70-4,415.41-1,872.83

Finding the Fourth Proportional to 3,198.70, 4,415.41 and 1,872.83

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Solution

The fourth proportional to 3,198.70, 4,415.41 and 1,872.83 is: 2,585.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.70 : 4,415.41 = 1,872.83 : x
  2. Step 2: Convert to fraction form
    3,198.70/4,415.41 = 1,872.83/x
  3. Step 3: Cross multiply
    3,198.70x = 4,415.41 × 1,872.83
  4. Step 4: Simplify right side
    3,198.70x = 8,269,325.69
  5. Step 5: Solve for x
    x = 8,269,325.69/3,198.70
  6. Step 6: Final answer
    x = 2,585.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.