Home / 2,011.68-3,010.56-1,391.22

Finding the Fourth Proportional to 2,011.68, 3,010.56 and 1,391.22

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Solution

The fourth proportional to 2,011.68, 3,010.56 and 1,391.22 is: 2,082.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.68 : 3,010.56 = 1,391.22 : x
  2. Step 2: Convert to fraction form
    2,011.68/3,010.56 = 1,391.22/x
  3. Step 3: Cross multiply
    2,011.68x = 3,010.56 × 1,391.22
  4. Step 4: Simplify right side
    2,011.68x = 4,188,351.28
  5. Step 5: Solve for x
    x = 4,188,351.28/2,011.68
  6. Step 6: Final answer
    x = 2,082.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.