Home / 3,912.62-5,400.42-2,717.66

Finding the Fourth Proportional to 3,912.62, 5,400.42 and 2,717.66

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Solution

The fourth proportional to 3,912.62, 5,400.42 and 2,717.66 is: 3,751.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912.62 : 5,400.42 = 2,717.66 : x
  2. Step 2: Convert to fraction form
    3,912.62/5,400.42 = 2,717.66/x
  3. Step 3: Cross multiply
    3,912.62x = 5,400.42 × 2,717.66
  4. Step 4: Simplify right side
    3,912.62x = 14,676,505.42
  5. Step 5: Solve for x
    x = 14,676,505.42/3,912.62
  6. Step 6: Final answer
    x = 3,751.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.