Home / 3,850.28-5,310.66-3,792.68

Finding the Fourth Proportional to 3,850.28, 5,310.66 and 3,792.68

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Solution

The fourth proportional to 3,850.28, 5,310.66 and 3,792.68 is: 5,231.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,850.28 : 5,310.66 = 3,792.68 : x
  2. Step 2: Convert to fraction form
    3,850.28/5,310.66 = 3,792.68/x
  3. Step 3: Cross multiply
    3,850.28x = 5,310.66 × 3,792.68
  4. Step 4: Simplify right side
    3,850.28x = 20,141,633.97
  5. Step 5: Solve for x
    x = 20,141,633.97/3,850.28
  6. Step 6: Final answer
    x = 5,231.21

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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.