Home / 3,942.84-5,441.24-2,174.56

Finding the Fourth Proportional to 3,942.84, 5,441.24 and 2,174.56

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Solution

The fourth proportional to 3,942.84, 5,441.24 and 2,174.56 is: 3,000.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.84 : 5,441.24 = 2,174.56 : x
  2. Step 2: Convert to fraction form
    3,942.84/5,441.24 = 2,174.56/x
  3. Step 3: Cross multiply
    3,942.84x = 5,441.24 × 2,174.56
  4. Step 4: Simplify right side
    3,942.84x = 11,832,325.29
  5. Step 5: Solve for x
    x = 11,832,325.29/3,942.84
  6. Step 6: Final answer
    x = 3,000.96

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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.