Home / 2,519.17-3,778.68-1,478.38

Finding the Fourth Proportional to 2,519.17, 3,778.68 and 1,478.38

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Solution

The fourth proportional to 2,519.17, 3,778.68 and 1,478.38 is: 2,217.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,519.17 : 3,778.68 = 1,478.38 : x
  2. Step 2: Convert to fraction form
    2,519.17/3,778.68 = 1,478.38/x
  3. Step 3: Cross multiply
    2,519.17x = 3,778.68 × 1,478.38
  4. Step 4: Simplify right side
    2,519.17x = 5,586,306.05
  5. Step 5: Solve for x
    x = 5,586,306.05/2,519.17
  6. Step 6: Final answer
    x = 2,217.52

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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.