Home / 3,857.72-5,785.80-1,084.52

Finding the Fourth Proportional to 3,857.72, 5,785.80 and 1,084.52

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Solution

The fourth proportional to 3,857.72, 5,785.80 and 1,084.52 is: 1,626.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.72 : 5,785.80 = 1,084.52 : x
  2. Step 2: Convert to fraction form
    3,857.72/5,785.80 = 1,084.52/x
  3. Step 3: Cross multiply
    3,857.72x = 5,785.80 × 1,084.52
  4. Step 4: Simplify right side
    3,857.72x = 6,274,815.82
  5. Step 5: Solve for x
    x = 6,274,815.82/3,857.72
  6. Step 6: Final answer
    x = 1,626.56

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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.