Home / 2,121.46-3,183.94-1,082.23

Finding the Fourth Proportional to 2,121.46, 3,183.94 and 1,082.23

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Solution

The fourth proportional to 2,121.46, 3,183.94 and 1,082.23 is: 1,624.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121.46 : 3,183.94 = 1,082.23 : x
  2. Step 2: Convert to fraction form
    2,121.46/3,183.94 = 1,082.23/x
  3. Step 3: Cross multiply
    2,121.46x = 3,183.94 × 1,082.23
  4. Step 4: Simplify right side
    2,121.46x = 3,445,748.78
  5. Step 5: Solve for x
    x = 3,445,748.78/2,121.46
  6. Step 6: Final answer
    x = 1,624.24

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1.5x scale

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.