Home / 3,139.26-4,330.26-2,256.26

Finding the Fourth Proportional to 3,139.26, 4,330.26 and 2,256.26

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Solution

The fourth proportional to 3,139.26, 4,330.26 and 2,256.26 is: 3,112.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.26 : 4,330.26 = 2,256.26 : x
  2. Step 2: Convert to fraction form
    3,139.26/4,330.26 = 2,256.26/x
  3. Step 3: Cross multiply
    3,139.26x = 4,330.26 × 2,256.26
  4. Step 4: Simplify right side
    3,139.26x = 9,770,170.78
  5. Step 5: Solve for x
    x = 9,770,170.78/3,139.26
  6. Step 6: Final answer
    x = 3,112.26

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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.