Home / 5,205.67-7,183.74-2,847.76

Finding the Fourth Proportional to 5,205.67, 7,183.74 and 2,847.76

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Solution

The fourth proportional to 5,205.67, 7,183.74 and 2,847.76 is: 3,929.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.67 : 7,183.74 = 2,847.76 : x
  2. Step 2: Convert to fraction form
    5,205.67/7,183.74 = 2,847.76/x
  3. Step 3: Cross multiply
    5,205.67x = 7,183.74 × 2,847.76
  4. Step 4: Simplify right side
    5,205.67x = 20,457,567.42
  5. Step 5: Solve for x
    x = 20,457,567.42/5,205.67
  6. Step 6: Final answer
    x = 3,929.86

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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.