Home / 2,738.36-4,110.28-1,278.54

Finding the Fourth Proportional to 2,738.36, 4,110.28 and 1,278.54

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Solution

The fourth proportional to 2,738.36, 4,110.28 and 1,278.54 is: 1,919.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,738.36 : 4,110.28 = 1,278.54 : x
  2. Step 2: Convert to fraction form
    2,738.36/4,110.28 = 1,278.54/x
  3. Step 3: Cross multiply
    2,738.36x = 4,110.28 × 1,278.54
  4. Step 4: Simplify right side
    2,738.36x = 5,255,157.39
  5. Step 5: Solve for x
    x = 5,255,157.39/2,738.36
  6. Step 6: Final answer
    x = 1,919.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.