Home / 3,981.29-5,493.93-2,212.83

Finding the Fourth Proportional to 3,981.29, 5,493.93 and 2,212.83

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Solution

The fourth proportional to 3,981.29, 5,493.93 and 2,212.83 is: 3,053.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.29 : 5,493.93 = 2,212.83 : x
  2. Step 2: Convert to fraction form
    3,981.29/5,493.93 = 2,212.83/x
  3. Step 3: Cross multiply
    3,981.29x = 5,493.93 × 2,212.83
  4. Step 4: Simplify right side
    3,981.29x = 12,157,133.12
  5. Step 5: Solve for x
    x = 12,157,133.12/3,981.29
  6. Step 6: Final answer
    x = 3,053.57

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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.