Home / 4,082.16-5,634.46-2,821.80

Finding the Fourth Proportional to 4,082.16, 5,634.46 and 2,821.80

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Solution

The fourth proportional to 4,082.16, 5,634.46 and 2,821.80 is: 3,894.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,082.16 : 5,634.46 = 2,821.80 : x
  2. Step 2: Convert to fraction form
    4,082.16/5,634.46 = 2,821.80/x
  3. Step 3: Cross multiply
    4,082.16x = 5,634.46 × 2,821.80
  4. Step 4: Simplify right side
    4,082.16x = 15,899,319.23
  5. Step 5: Solve for x
    x = 15,899,319.23/4,082.16
  6. Step 6: Final answer
    x = 3,894.83

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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.