Home / 2,266.85-3,128.19-1,258.54

Finding the Fourth Proportional to 2,266.85, 3,128.19 and 1,258.54

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Solution

The fourth proportional to 2,266.85, 3,128.19 and 1,258.54 is: 1,736.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,266.85 : 3,128.19 = 1,258.54 : x
  2. Step 2: Convert to fraction form
    2,266.85/3,128.19 = 1,258.54/x
  3. Step 3: Cross multiply
    2,266.85x = 3,128.19 × 1,258.54
  4. Step 4: Simplify right side
    2,266.85x = 3,936,939.70
  5. Step 5: Solve for x
    x = 3,936,939.70/2,266.85
  6. Step 6: Final answer
    x = 1,736.74

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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.