Home / 5,205.39-7,183.59-2,847.66

Finding the Fourth Proportional to 5,205.39, 7,183.59 and 2,847.66

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Solution

The fourth proportional to 5,205.39, 7,183.59 and 2,847.66 is: 3,929.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.39 : 7,183.59 = 2,847.66 : x
  2. Step 2: Convert to fraction form
    5,205.39/7,183.59 = 2,847.66/x
  3. Step 3: Cross multiply
    5,205.39x = 7,183.59 × 2,847.66
  4. Step 4: Simplify right side
    5,205.39x = 20,456,421.90
  5. Step 5: Solve for x
    x = 20,456,421.90/5,205.39
  6. Step 6: Final answer
    x = 3,929.85

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Double scale
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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.