Home / 3,942.75-5,440.41-2,264.23

Finding the Fourth Proportional to 3,942.75, 5,440.41 and 2,264.23

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Solution

The fourth proportional to 3,942.75, 5,440.41 and 2,264.23 is: 3,124.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.75 : 5,440.41 = 2,264.23 : x
  2. Step 2: Convert to fraction form
    3,942.75/5,440.41 = 2,264.23/x
  3. Step 3: Cross multiply
    3,942.75x = 5,440.41 × 2,264.23
  4. Step 4: Simplify right side
    3,942.75x = 12,318,339.53
  5. Step 5: Solve for x
    x = 12,318,339.53/3,942.75
  6. Step 6: Final answer
    x = 3,124.30

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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.