Home / 3,942.23-5,440.31-2,263.61

Finding the Fourth Proportional to 3,942.23, 5,440.31 and 2,263.61

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Solution

The fourth proportional to 3,942.23, 5,440.31 and 2,263.61 is: 3,123.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.23 : 5,440.31 = 2,263.61 : x
  2. Step 2: Convert to fraction form
    3,942.23/5,440.31 = 2,263.61/x
  3. Step 3: Cross multiply
    3,942.23x = 5,440.31 × 2,263.61
  4. Step 4: Simplify right side
    3,942.23x = 12,314,763.62
  5. Step 5: Solve for x
    x = 12,314,763.62/3,942.23
  6. Step 6: Final answer
    x = 3,123.81

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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.