Home / 2,819.64-4,224.78-1,993.82

Finding the Fourth Proportional to 2,819.64, 4,224.78 and 1,993.82

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Solution

The fourth proportional to 2,819.64, 4,224.78 and 1,993.82 is: 2,987.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.64 : 4,224.78 = 1,993.82 : x
  2. Step 2: Convert to fraction form
    2,819.64/4,224.78 = 1,993.82/x
  3. Step 3: Cross multiply
    2,819.64x = 4,224.78 × 1,993.82
  4. Step 4: Simplify right side
    2,819.64x = 8,423,435.34
  5. Step 5: Solve for x
    x = 8,423,435.34/2,819.64
  6. Step 6: Final answer
    x = 2,987.42

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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.