Home / 3,981.30-5,494.26-2,212.92

Finding the Fourth Proportional to 3,981.30, 5,494.26 and 2,212.92

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Solution

The fourth proportional to 3,981.30, 5,494.26 and 2,212.92 is: 3,053.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.30 : 5,494.26 = 2,212.92 : x
  2. Step 2: Convert to fraction form
    3,981.30/5,494.26 = 2,212.92/x
  3. Step 3: Cross multiply
    3,981.30x = 5,494.26 × 2,212.92
  4. Step 4: Simplify right side
    3,981.30x = 12,158,357.84
  5. Step 5: Solve for x
    x = 12,158,357.84/3,981.30
  6. Step 6: Final answer
    x = 3,053.87

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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.