Home / 3,996.39-5,515.04-2,228.11

Finding the Fourth Proportional to 3,996.39, 5,515.04 and 2,228.11

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Solution

The fourth proportional to 3,996.39, 5,515.04 and 2,228.11 is: 3,074.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,996.39 : 5,515.04 = 2,228.11 : x
  2. Step 2: Convert to fraction form
    3,996.39/5,515.04 = 2,228.11/x
  3. Step 3: Cross multiply
    3,996.39x = 5,515.04 × 2,228.11
  4. Step 4: Simplify right side
    3,996.39x = 12,288,115.77
  5. Step 5: Solve for x
    x = 12,288,115.77/3,996.39
  6. Step 6: Final answer
    x = 3,074.80

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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.