Home / 3,414.50-5,121.79-1,440.46

Finding the Fourth Proportional to 3,414.50, 5,121.79 and 1,440.46

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Solution

The fourth proportional to 3,414.50, 5,121.79 and 1,440.46 is: 2,160.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,414.50 : 5,121.79 = 1,440.46 : x
  2. Step 2: Convert to fraction form
    3,414.50/5,121.79 = 1,440.46/x
  3. Step 3: Cross multiply
    3,414.50x = 5,121.79 × 1,440.46
  4. Step 4: Simplify right side
    3,414.50x = 7,377,736.42
  5. Step 5: Solve for x
    x = 7,377,736.42/3,414.50
  6. Step 6: Final answer
    x = 2,160.71

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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.