Home / 3,590.68-5,378.20-2,199.78

Finding the Fourth Proportional to 3,590.68, 5,378.20 and 2,199.78

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Solution

The fourth proportional to 3,590.68, 5,378.20 and 2,199.78 is: 3,294.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,590.68 : 5,378.20 = 2,199.78 : x
  2. Step 2: Convert to fraction form
    3,590.68/5,378.20 = 2,199.78/x
  3. Step 3: Cross multiply
    3,590.68x = 5,378.20 × 2,199.78
  4. Step 4: Simplify right side
    3,590.68x = 11,830,856.80
  5. Step 5: Solve for x
    x = 11,830,856.80/3,590.68
  6. Step 6: Final answer
    x = 3,294.88

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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.