Home / 3,902.21-5,383.97-2,329.73

Finding the Fourth Proportional to 3,902.21, 5,383.97 and 2,329.73

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Solution

The fourth proportional to 3,902.21, 5,383.97 and 2,329.73 is: 3,214.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.21 : 5,383.97 = 2,329.73 : x
  2. Step 2: Convert to fraction form
    3,902.21/5,383.97 = 2,329.73/x
  3. Step 3: Cross multiply
    3,902.21x = 5,383.97 × 2,329.73
  4. Step 4: Simplify right side
    3,902.21x = 12,543,184.78
  5. Step 5: Solve for x
    x = 12,543,184.78/3,902.21
  6. Step 6: Final answer
    x = 3,214.38

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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.