Home / 3,900.96-5,383.74-2,222.46

Finding the Fourth Proportional to 3,900.96, 5,383.74 and 2,222.46

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Solution

The fourth proportional to 3,900.96, 5,383.74 and 2,222.46 is: 3,067.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900.96 : 5,383.74 = 2,222.46 : x
  2. Step 2: Convert to fraction form
    3,900.96/5,383.74 = 2,222.46/x
  3. Step 3: Cross multiply
    3,900.96x = 5,383.74 × 2,222.46
  4. Step 4: Simplify right side
    3,900.96x = 11,965,146.80
  5. Step 5: Solve for x
    x = 11,965,146.80/3,900.96
  6. Step 6: Final answer
    x = 3,067.23

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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.