Home / 3,900.73-5,383.41-2,222.50

Finding the Fourth Proportional to 3,900.73, 5,383.41 and 2,222.50

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Solution

The fourth proportional to 3,900.73, 5,383.41 and 2,222.50 is: 3,067.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900.73 : 5,383.41 = 2,222.50 : x
  2. Step 2: Convert to fraction form
    3,900.73/5,383.41 = 2,222.50/x
  3. Step 3: Cross multiply
    3,900.73x = 5,383.41 × 2,222.50
  4. Step 4: Simplify right side
    3,900.73x = 11,964,628.73
  5. Step 5: Solve for x
    x = 11,964,628.73/3,900.73
  6. Step 6: Final answer
    x = 3,067.28

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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.