Home / 4,919.22-7,380.85-3,609.65

Finding the Fourth Proportional to 4,919.22, 7,380.85 and 3,609.65

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Solution

The fourth proportional to 4,919.22, 7,380.85 and 3,609.65 is: 5,415.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.22 : 7,380.85 = 3,609.65 : x
  2. Step 2: Convert to fraction form
    4,919.22/7,380.85 = 3,609.65/x
  3. Step 3: Cross multiply
    4,919.22x = 7,380.85 × 3,609.65
  4. Step 4: Simplify right side
    4,919.22x = 26,642,285.20
  5. Step 5: Solve for x
    x = 26,642,285.20/4,919.22
  6. Step 6: Final answer
    x = 5,415.96

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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.