Home / 5,661.80-8,487.86-2,149.84

Finding the Fourth Proportional to 5,661.80, 8,487.86 and 2,149.84

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Solution

The fourth proportional to 5,661.80, 8,487.86 and 2,149.84 is: 3,222.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,661.80 : 8,487.86 = 2,149.84 : x
  2. Step 2: Convert to fraction form
    5,661.80/8,487.86 = 2,149.84/x
  3. Step 3: Cross multiply
    5,661.80x = 8,487.86 × 2,149.84
  4. Step 4: Simplify right side
    5,661.80x = 18,247,540.94
  5. Step 5: Solve for x
    x = 18,247,540.94/5,661.80
  6. Step 6: Final answer
    x = 3,222.92

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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.