Home / 3,942.74-5,440.38-2,348.90

Finding the Fourth Proportional to 3,942.74, 5,440.38 and 2,348.90

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Solution

The fourth proportional to 3,942.74, 5,440.38 and 2,348.90 is: 3,241.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.74 : 5,440.38 = 2,348.90 : x
  2. Step 2: Convert to fraction form
    3,942.74/5,440.38 = 2,348.90/x
  3. Step 3: Cross multiply
    3,942.74x = 5,440.38 × 2,348.90
  4. Step 4: Simplify right side
    3,942.74x = 12,778,908.58
  5. Step 5: Solve for x
    x = 12,778,908.58/3,942.74
  6. Step 6: Final answer
    x = 3,241.12

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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.