Home / 2,638.45-3,940.46-2,244.25

Finding the Fourth Proportional to 2,638.45, 3,940.46 and 2,244.25

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Solution

The fourth proportional to 2,638.45, 3,940.46 and 2,244.25 is: 3,351.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638.45 : 3,940.46 = 2,244.25 : x
  2. Step 2: Convert to fraction form
    2,638.45/3,940.46 = 2,244.25/x
  3. Step 3: Cross multiply
    2,638.45x = 3,940.46 × 2,244.25
  4. Step 4: Simplify right side
    2,638.45x = 8,843,377.36
  5. Step 5: Solve for x
    x = 8,843,377.36/2,638.45
  6. Step 6: Final answer
    x = 3,351.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.