Home / 3,891.24-5,369.22-2,212.38

Finding the Fourth Proportional to 3,891.24, 5,369.22 and 2,212.38

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Solution

The fourth proportional to 3,891.24, 5,369.22 and 2,212.38 is: 3,052.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891.24 : 5,369.22 = 2,212.38 : x
  2. Step 2: Convert to fraction form
    3,891.24/5,369.22 = 2,212.38/x
  3. Step 3: Cross multiply
    3,891.24x = 5,369.22 × 2,212.38
  4. Step 4: Simplify right side
    3,891.24x = 11,878,754.94
  5. Step 5: Solve for x
    x = 11,878,754.94/3,891.24
  6. Step 6: Final answer
    x = 3,052.69

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1.5x scale

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.