Home / 2,819.58-3,896.55-2,287.41

Finding the Fourth Proportional to 2,819.58, 3,896.55 and 2,287.41

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Solution

The fourth proportional to 2,819.58, 3,896.55 and 2,287.41 is: 3,161.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.58 : 3,896.55 = 2,287.41 : x
  2. Step 2: Convert to fraction form
    2,819.58/3,896.55 = 2,287.41/x
  3. Step 3: Cross multiply
    2,819.58x = 3,896.55 × 2,287.41
  4. Step 4: Simplify right side
    2,819.58x = 8,913,007.44
  5. Step 5: Solve for x
    x = 8,913,007.44/2,819.58
  6. Step 6: Final answer
    x = 3,161.11

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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.