Home / 3,857.67-5,786.91-1,084.32

Finding the Fourth Proportional to 3,857.67, 5,786.91 and 1,084.32

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Solution

The fourth proportional to 3,857.67, 5,786.91 and 1,084.32 is: 1,626.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.67 : 5,786.91 = 1,084.32 : x
  2. Step 2: Convert to fraction form
    3,857.67/5,786.91 = 1,084.32/x
  3. Step 3: Cross multiply
    3,857.67x = 5,786.91 × 1,084.32
  4. Step 4: Simplify right side
    3,857.67x = 6,274,862.25
  5. Step 5: Solve for x
    x = 6,274,862.25/3,857.67
  6. Step 6: Final answer
    x = 1,626.59

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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.