Home / 3,546.20-5,319.30-2,919.80

Finding the Fourth Proportional to 3,546.20, 5,319.30 and 2,919.80

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Solution

The fourth proportional to 3,546.20, 5,319.30 and 2,919.80 is: 4,379.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,546.20 : 5,319.30 = 2,919.80 : x
  2. Step 2: Convert to fraction form
    3,546.20/5,319.30 = 2,919.80/x
  3. Step 3: Cross multiply
    3,546.20x = 5,319.30 × 2,919.80
  4. Step 4: Simplify right side
    3,546.20x = 15,531,292.14
  5. Step 5: Solve for x
    x = 15,531,292.14/3,546.20
  6. Step 6: Final answer
    x = 4,379.70

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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.