Home / 2,812.62-4,220.16-1,082.46

Finding the Fourth Proportional to 2,812.62, 4,220.16 and 1,082.46

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Solution

The fourth proportional to 2,812.62, 4,220.16 and 1,082.46 is: 1,624.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.62 : 4,220.16 = 1,082.46 : x
  2. Step 2: Convert to fraction form
    2,812.62/4,220.16 = 1,082.46/x
  3. Step 3: Cross multiply
    2,812.62x = 4,220.16 × 1,082.46
  4. Step 4: Simplify right side
    2,812.62x = 4,568,154.39
  5. Step 5: Solve for x
    x = 4,568,154.39/2,812.62
  6. Step 6: Final answer
    x = 1,624.16

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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.