Home / 3,815.11-5,717.19-2,168.18

Finding the Fourth Proportional to 3,815.11, 5,717.19 and 2,168.18

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Solution

The fourth proportional to 3,815.11, 5,717.19 and 2,168.18 is: 3,249.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.11 : 5,717.19 = 2,168.18 : x
  2. Step 2: Convert to fraction form
    3,815.11/5,717.19 = 2,168.18/x
  3. Step 3: Cross multiply
    3,815.11x = 5,717.19 × 2,168.18
  4. Step 4: Simplify right side
    3,815.11x = 12,395,868.43
  5. Step 5: Solve for x
    x = 12,395,868.43/3,815.11
  6. Step 6: Final answer
    x = 3,249.15

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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.