Home / 2,819.41-3,891.85-1,824.93

Finding the Fourth Proportional to 2,819.41, 3,891.85 and 1,824.93

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Solution

The fourth proportional to 2,819.41, 3,891.85 and 1,824.93 is: 2,519.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.41 : 3,891.85 = 1,824.93 : x
  2. Step 2: Convert to fraction form
    2,819.41/3,891.85 = 1,824.93/x
  3. Step 3: Cross multiply
    2,819.41x = 3,891.85 × 1,824.93
  4. Step 4: Simplify right side
    2,819.41x = 7,102,349.26
  5. Step 5: Solve for x
    x = 7,102,349.26/2,819.41
  6. Step 6: Final answer
    x = 2,519.09

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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.