Home / 5,471.80-8,205.30-2,183.80

Finding the Fourth Proportional to 5,471.80, 8,205.30 and 2,183.80

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Solution

The fourth proportional to 5,471.80, 8,205.30 and 2,183.80 is: 3,274.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,471.80 : 8,205.30 = 2,183.80 : x
  2. Step 2: Convert to fraction form
    5,471.80/8,205.30 = 2,183.80/x
  3. Step 3: Cross multiply
    5,471.80x = 8,205.30 × 2,183.80
  4. Step 4: Simplify right side
    5,471.80x = 17,918,734.14
  5. Step 5: Solve for x
    x = 17,918,734.14/5,471.80
  6. Step 6: Final answer
    x = 3,274.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.