Home / 2,266.42-3,128.44-1,428.54

Finding the Fourth Proportional to 2,266.42, 3,128.44 and 1,428.54

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Solution

The fourth proportional to 2,266.42, 3,128.44 and 1,428.54 is: 1,971.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,266.42 : 3,128.44 = 1,428.54 : x
  2. Step 2: Convert to fraction form
    2,266.42/3,128.44 = 1,428.54/x
  3. Step 3: Cross multiply
    2,266.42x = 3,128.44 × 1,428.54
  4. Step 4: Simplify right side
    2,266.42x = 4,469,086.04
  5. Step 5: Solve for x
    x = 4,469,086.04/2,266.42
  6. Step 6: Final answer
    x = 1,971.87

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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.