Home / 3,190.05-4,778.13-1,543.13

Finding the Fourth Proportional to 3,190.05, 4,778.13 and 1,543.13

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Solution

The fourth proportional to 3,190.05, 4,778.13 and 1,543.13 is: 2,311.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.05 : 4,778.13 = 1,543.13 : x
  2. Step 2: Convert to fraction form
    3,190.05/4,778.13 = 1,543.13/x
  3. Step 3: Cross multiply
    3,190.05x = 4,778.13 × 1,543.13
  4. Step 4: Simplify right side
    3,190.05x = 7,373,251.86
  5. Step 5: Solve for x
    x = 7,373,251.86/3,190.05
  6. Step 6: Final answer
    x = 2,311.33

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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.