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Finding the Fourth Proportional to 4,379.62, 6,559.78 and 3,620.52

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Solution

The fourth proportional to 4,379.62, 6,559.78 and 3,620.52 is: 5,422.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,379.62 : 6,559.78 = 3,620.52 : x
  2. Step 2: Convert to fraction form
    4,379.62/6,559.78 = 3,620.52/x
  3. Step 3: Cross multiply
    4,379.62x = 6,559.78 × 3,620.52
  4. Step 4: Simplify right side
    4,379.62x = 23,749,814.69
  5. Step 5: Solve for x
    x = 23,749,814.69/4,379.62
  6. Step 6: Final answer
    x = 5,422.80

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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.