Home / 3,863.12-5,323.74-3,792.03

Finding the Fourth Proportional to 3,863.12, 5,323.74 and 3,792.03

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Solution

The fourth proportional to 3,863.12, 5,323.74 and 3,792.03 is: 5,225.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,863.12 : 5,323.74 = 3,792.03 : x
  2. Step 2: Convert to fraction form
    3,863.12/5,323.74 = 3,792.03/x
  3. Step 3: Cross multiply
    3,863.12x = 5,323.74 × 3,792.03
  4. Step 4: Simplify right side
    3,863.12x = 20,187,781.79
  5. Step 5: Solve for x
    x = 20,187,781.79/3,863.12
  6. Step 6: Final answer
    x = 5,225.78

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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.