Home / 5,205.60-7,183.76-2,847.72

Finding the Fourth Proportional to 5,205.60, 7,183.76 and 2,847.72

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Solution

The fourth proportional to 5,205.60, 7,183.76 and 2,847.72 is: 3,929.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.60 : 7,183.76 = 2,847.72 : x
  2. Step 2: Convert to fraction form
    5,205.60/7,183.76 = 2,847.72/x
  3. Step 3: Cross multiply
    5,205.60x = 7,183.76 × 2,847.72
  4. Step 4: Simplify right side
    5,205.60x = 20,457,337.03
  5. Step 5: Solve for x
    x = 20,457,337.03/5,205.60
  6. Step 6: Final answer
    x = 3,929.87

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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.