Home / 3,942.96-5,439.58-2,263.98

Finding the Fourth Proportional to 3,942.96, 5,439.58 and 2,263.98

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Solution

The fourth proportional to 3,942.96, 5,439.58 and 2,263.98 is: 3,123.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.96 : 5,439.58 = 2,263.98 : x
  2. Step 2: Convert to fraction form
    3,942.96/5,439.58 = 2,263.98/x
  3. Step 3: Cross multiply
    3,942.96x = 5,439.58 × 2,263.98
  4. Step 4: Simplify right side
    3,942.96x = 12,315,121.43
  5. Step 5: Solve for x
    x = 12,315,121.43/3,942.96
  6. Step 6: Final answer
    x = 3,123.32

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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.