Home / 3,013.20-4,523.85-1,919.70

Finding the Fourth Proportional to 3,013.20, 4,523.85 and 1,919.70

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Solution

The fourth proportional to 3,013.20, 4,523.85 and 1,919.70 is: 2,882.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,013.20 : 4,523.85 = 1,919.70 : x
  2. Step 2: Convert to fraction form
    3,013.20/4,523.85 = 1,919.70/x
  3. Step 3: Cross multiply
    3,013.20x = 4,523.85 × 1,919.70
  4. Step 4: Simplify right side
    3,013.20x = 8,684,434.85
  5. Step 5: Solve for x
    x = 8,684,434.85/3,013.20
  6. Step 6: Final answer
    x = 2,882.13

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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.