Home / 4,218.62-5,819.91-2,821.82

Finding the Fourth Proportional to 4,218.62, 5,819.91 and 2,821.82

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Solution

The fourth proportional to 4,218.62, 5,819.91 and 2,821.82 is: 3,892.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.62 : 5,819.91 = 2,821.82 : x
  2. Step 2: Convert to fraction form
    4,218.62/5,819.91 = 2,821.82/x
  3. Step 3: Cross multiply
    4,218.62x = 5,819.91 × 2,821.82
  4. Step 4: Simplify right side
    4,218.62x = 16,422,738.44
  5. Step 5: Solve for x
    x = 16,422,738.44/4,218.62
  6. Step 6: Final answer
    x = 3,892.92

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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.