Home / 5,205.54-7,183.64-2,847.68

Finding the Fourth Proportional to 5,205.54, 7,183.64 and 2,847.68

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Solution

The fourth proportional to 5,205.54, 7,183.64 and 2,847.68 is: 3,929.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.54 : 7,183.64 = 2,847.68 : x
  2. Step 2: Convert to fraction form
    5,205.54/7,183.64 = 2,847.68/x
  3. Step 3: Cross multiply
    5,205.54x = 7,183.64 × 2,847.68
  4. Step 4: Simplify right side
    5,205.54x = 20,456,707.96
  5. Step 5: Solve for x
    x = 20,456,707.96/5,205.54
  6. Step 6: Final answer
    x = 3,929.80

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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.