Home / 4,145.20-5,722.49-3,198.86

Finding the Fourth Proportional to 4,145.20, 5,722.49 and 3,198.86

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Solution

The fourth proportional to 4,145.20, 5,722.49 and 3,198.86 is: 4,416.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.20 : 5,722.49 = 3,198.86 : x
  2. Step 2: Convert to fraction form
    4,145.20/5,722.49 = 3,198.86/x
  3. Step 3: Cross multiply
    4,145.20x = 5,722.49 × 3,198.86
  4. Step 4: Simplify right side
    4,145.20x = 18,305,444.36
  5. Step 5: Solve for x
    x = 18,305,444.36/4,145.20
  6. Step 6: Final answer
    x = 4,416.06

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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.