Home / 3,942.64-5,440.66-2,262.86

Finding the Fourth Proportional to 3,942.64, 5,440.66 and 2,262.86

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Solution

The fourth proportional to 3,942.64, 5,440.66 and 2,262.86 is: 3,122.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.64 : 5,440.66 = 2,262.86 : x
  2. Step 2: Convert to fraction form
    3,942.64/5,440.66 = 2,262.86/x
  3. Step 3: Cross multiply
    3,942.64x = 5,440.66 × 2,262.86
  4. Step 4: Simplify right side
    3,942.64x = 12,311,451.55
  5. Step 5: Solve for x
    x = 12,311,451.55/3,942.64
  6. Step 6: Final answer
    x = 3,122.64

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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.