Home / 5,205.72-7,183.80-2,847.84

Finding the Fourth Proportional to 5,205.72, 7,183.80 and 2,847.84

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Solution

The fourth proportional to 5,205.72, 7,183.80 and 2,847.84 is: 3,929.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.72 : 7,183.80 = 2,847.84 : x
  2. Step 2: Convert to fraction form
    5,205.72/7,183.80 = 2,847.84/x
  3. Step 3: Cross multiply
    5,205.72x = 7,183.80 × 2,847.84
  4. Step 4: Simplify right side
    5,205.72x = 20,458,312.99
  5. Step 5: Solve for x
    x = 20,458,312.99/5,205.72
  6. Step 6: Final answer
    x = 3,929.97

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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.