Home / 2,286.78-3,161.07-2,040.54

Finding the Fourth Proportional to 2,286.78, 3,161.07 and 2,040.54

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Solution

The fourth proportional to 2,286.78, 3,161.07 and 2,040.54 is: 2,820.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,286.78 : 3,161.07 = 2,040.54 : x
  2. Step 2: Convert to fraction form
    2,286.78/3,161.07 = 2,040.54/x
  3. Step 3: Cross multiply
    2,286.78x = 3,161.07 × 2,040.54
  4. Step 4: Simplify right side
    2,286.78x = 6,450,289.78
  5. Step 5: Solve for x
    x = 6,450,289.78/2,286.78
  6. Step 6: Final answer
    x = 2,820.69

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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.