Home / 5,205.62-7,183.75-2,847.76

Finding the Fourth Proportional to 5,205.62, 7,183.75 and 2,847.76

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Solution

The fourth proportional to 5,205.62, 7,183.75 and 2,847.76 is: 3,929.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.62 : 7,183.75 = 2,847.76 : x
  2. Step 2: Convert to fraction form
    5,205.62/7,183.75 = 2,847.76/x
  3. Step 3: Cross multiply
    5,205.62x = 7,183.75 × 2,847.76
  4. Step 4: Simplify right side
    5,205.62x = 20,457,595.90
  5. Step 5: Solve for x
    x = 20,457,595.90/5,205.62
  6. Step 6: Final answer
    x = 3,929.91

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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.