Home / 3,942.75-5,441.03-2,174.42

Finding the Fourth Proportional to 3,942.75, 5,441.03 and 2,174.42

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Solution

The fourth proportional to 3,942.75, 5,441.03 and 2,174.42 is: 3,000.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.75 : 5,441.03 = 2,174.42 : x
  2. Step 2: Convert to fraction form
    3,942.75/5,441.03 = 2,174.42/x
  3. Step 3: Cross multiply
    3,942.75x = 5,441.03 × 2,174.42
  4. Step 4: Simplify right side
    3,942.75x = 11,831,103.49
  5. Step 5: Solve for x
    x = 11,831,103.49/3,942.75
  6. Step 6: Final answer
    x = 3,000.72

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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.