Home / 3,198.92-4,380.61-3,021.32

Finding the Fourth Proportional to 3,198.92, 4,380.61 and 3,021.32

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Solution

The fourth proportional to 3,198.92, 4,380.61 and 3,021.32 is: 4,137.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.92 : 4,380.61 = 3,021.32 : x
  2. Step 2: Convert to fraction form
    3,198.92/4,380.61 = 3,021.32/x
  3. Step 3: Cross multiply
    3,198.92x = 4,380.61 × 3,021.32
  4. Step 4: Simplify right side
    3,198.92x = 13,235,224.61
  5. Step 5: Solve for x
    x = 13,235,224.61/3,198.92
  6. Step 6: Final answer
    x = 4,137.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.