Home / 3,942.24-5,440.56-2,286.24

Finding the Fourth Proportional to 3,942.24, 5,440.56 and 2,286.24

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Solution

The fourth proportional to 3,942.24, 5,440.56 and 2,286.24 is: 3,155.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.24 : 5,440.56 = 2,286.24 : x
  2. Step 2: Convert to fraction form
    3,942.24/5,440.56 = 2,286.24/x
  3. Step 3: Cross multiply
    3,942.24x = 5,440.56 × 2,286.24
  4. Step 4: Simplify right side
    3,942.24x = 12,438,425.89
  5. Step 5: Solve for x
    x = 12,438,425.89/3,942.24
  6. Step 6: Final answer
    x = 3,155.17

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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.