Home / 1,819.05-2,728.58-1,235.85

Finding the Fourth Proportional to 1,819.05, 2,728.58 and 1,235.85

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Solution

The fourth proportional to 1,819.05, 2,728.58 and 1,235.85 is: 1,853.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819.05 : 2,728.58 = 1,235.85 : x
  2. Step 2: Convert to fraction form
    1,819.05/2,728.58 = 1,235.85/x
  3. Step 3: Cross multiply
    1,819.05x = 2,728.58 × 1,235.85
  4. Step 4: Simplify right side
    1,819.05x = 3,372,109.41
  5. Step 5: Solve for x
    x = 3,372,109.41/1,819.05
  6. Step 6: Final answer
    x = 1,853.78

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1.5x scale

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.