Home / 3,519.38-5,281.14-1,299.76

Finding the Fourth Proportional to 3,519.38, 5,281.14 and 1,299.76

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Solution

The fourth proportional to 3,519.38, 5,281.14 and 1,299.76 is: 1,950.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.38 : 5,281.14 = 1,299.76 : x
  2. Step 2: Convert to fraction form
    3,519.38/5,281.14 = 1,299.76/x
  3. Step 3: Cross multiply
    3,519.38x = 5,281.14 × 1,299.76
  4. Step 4: Simplify right side
    3,519.38x = 6,864,229.42
  5. Step 5: Solve for x
    x = 6,864,229.42/3,519.38
  6. Step 6: Final answer
    x = 1,950.41

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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.