Home / 3,942.62-5,440.79-2,264.21

Finding the Fourth Proportional to 3,942.62, 5,440.79 and 2,264.21

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Solution

The fourth proportional to 3,942.62, 5,440.79 and 2,264.21 is: 3,124.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.62 : 5,440.79 = 2,264.21 : x
  2. Step 2: Convert to fraction form
    3,942.62/5,440.79 = 2,264.21/x
  3. Step 3: Cross multiply
    3,942.62x = 5,440.79 × 2,264.21
  4. Step 4: Simplify right side
    3,942.62x = 12,319,069.58
  5. Step 5: Solve for x
    x = 12,319,069.58/3,942.62
  6. Step 6: Final answer
    x = 3,124.59

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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.