Home / 3,857.28-5,785.74-2,683.82

Finding the Fourth Proportional to 3,857.28, 5,785.74 and 2,683.82

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Solution

The fourth proportional to 3,857.28, 5,785.74 and 2,683.82 is: 4,025.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.28 : 5,785.74 = 2,683.82 : x
  2. Step 2: Convert to fraction form
    3,857.28/5,785.74 = 2,683.82/x
  3. Step 3: Cross multiply
    3,857.28x = 5,785.74 × 2,683.82
  4. Step 4: Simplify right side
    3,857.28x = 15,527,884.73
  5. Step 5: Solve for x
    x = 15,527,884.73/3,857.28
  6. Step 6: Final answer
    x = 4,025.60

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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.