Home / 3,106.26-4,286.78-1,927.71

Finding the Fourth Proportional to 3,106.26, 4,286.78 and 1,927.71

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Solution

The fourth proportional to 3,106.26, 4,286.78 and 1,927.71 is: 2,660.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.26 : 4,286.78 = 1,927.71 : x
  2. Step 2: Convert to fraction form
    3,106.26/4,286.78 = 1,927.71/x
  3. Step 3: Cross multiply
    3,106.26x = 4,286.78 × 1,927.71
  4. Step 4: Simplify right side
    3,106.26x = 8,263,668.67
  5. Step 5: Solve for x
    x = 8,263,668.67/3,106.26
  6. Step 6: Final answer
    x = 2,660.33

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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.