Home / 3,199.55-4,416.68-2,020.39

Finding the Fourth Proportional to 3,199.55, 4,416.68 and 2,020.39

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Solution

The fourth proportional to 3,199.55, 4,416.68 and 2,020.39 is: 2,788.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,199.55 : 4,416.68 = 2,020.39 : x
  2. Step 2: Convert to fraction form
    3,199.55/4,416.68 = 2,020.39/x
  3. Step 3: Cross multiply
    3,199.55x = 4,416.68 × 2,020.39
  4. Step 4: Simplify right side
    3,199.55x = 8,923,423.59
  5. Step 5: Solve for x
    x = 8,923,423.59/3,199.55
  6. Step 6: Final answer
    x = 2,788.96

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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.