Home / 3,981.27-5,494.36-2,212.91

Finding the Fourth Proportional to 3,981.27, 5,494.36 and 2,212.91

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Solution

The fourth proportional to 3,981.27, 5,494.36 and 2,212.91 is: 3,053.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.27 : 5,494.36 = 2,212.91 : x
  2. Step 2: Convert to fraction form
    3,981.27/5,494.36 = 2,212.91/x
  3. Step 3: Cross multiply
    3,981.27x = 5,494.36 × 2,212.91
  4. Step 4: Simplify right side
    3,981.27x = 12,158,524.19
  5. Step 5: Solve for x
    x = 12,158,524.19/3,981.27
  6. Step 6: Final answer
    x = 3,053.93

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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.