Home / 2,738.38-3,778.75-1,559.22

Finding the Fourth Proportional to 2,738.38, 3,778.75 and 1,559.22

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Solution

The fourth proportional to 2,738.38, 3,778.75 and 1,559.22 is: 2,151.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,738.38 : 3,778.75 = 1,559.22 : x
  2. Step 2: Convert to fraction form
    2,738.38/3,778.75 = 1,559.22/x
  3. Step 3: Cross multiply
    2,738.38x = 3,778.75 × 1,559.22
  4. Step 4: Simplify right side
    2,738.38x = 5,891,902.58
  5. Step 5: Solve for x
    x = 5,891,902.58/2,738.38
  6. Step 6: Final answer
    x = 2,151.60

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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.