Home / 3,072.24-4,243.46-2,231.60

Finding the Fourth Proportional to 3,072.24, 4,243.46 and 2,231.60

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Solution

The fourth proportional to 3,072.24, 4,243.46 and 2,231.60 is: 3,082.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.24 : 4,243.46 = 2,231.60 : x
  2. Step 2: Convert to fraction form
    3,072.24/4,243.46 = 2,231.60/x
  3. Step 3: Cross multiply
    3,072.24x = 4,243.46 × 2,231.60
  4. Step 4: Simplify right side
    3,072.24x = 9,469,672.96
  5. Step 5: Solve for x
    x = 9,469,672.96/3,072.24
  6. Step 6: Final answer
    x = 3,082.34

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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.