Home / 5,515.38-8,274.69-2,226.78

Finding the Fourth Proportional to 5,515.38, 8,274.69 and 2,226.78

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Solution

The fourth proportional to 5,515.38, 8,274.69 and 2,226.78 is: 3,340.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.38 : 8,274.69 = 2,226.78 : x
  2. Step 2: Convert to fraction form
    5,515.38/8,274.69 = 2,226.78/x
  3. Step 3: Cross multiply
    5,515.38x = 8,274.69 × 2,226.78
  4. Step 4: Simplify right side
    5,515.38x = 18,425,914.20
  5. Step 5: Solve for x
    x = 18,425,914.20/5,515.38
  6. Step 6: Final answer
    x = 3,340.82

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1.5x scale

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.