Home / 3,863.74-5,792.37-3,131.50

Finding the Fourth Proportional to 3,863.74, 5,792.37 and 3,131.50

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Solution

The fourth proportional to 3,863.74, 5,792.37 and 3,131.50 is: 4,694.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,863.74 : 5,792.37 = 3,131.50 : x
  2. Step 2: Convert to fraction form
    3,863.74/5,792.37 = 3,131.50/x
  3. Step 3: Cross multiply
    3,863.74x = 5,792.37 × 3,131.50
  4. Step 4: Simplify right side
    3,863.74x = 18,138,806.66
  5. Step 5: Solve for x
    x = 18,138,806.66/3,863.74
  6. Step 6: Final answer
    x = 4,694.62

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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.