Home / 3,279.09-4,920.21-1,635.87

Finding the Fourth Proportional to 3,279.09, 4,920.21 and 1,635.87

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Solution

The fourth proportional to 3,279.09, 4,920.21 and 1,635.87 is: 2,454.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.09 : 4,920.21 = 1,635.87 : x
  2. Step 2: Convert to fraction form
    3,279.09/4,920.21 = 1,635.87/x
  3. Step 3: Cross multiply
    3,279.09x = 4,920.21 × 1,635.87
  4. Step 4: Simplify right side
    3,279.09x = 8,048,823.93
  5. Step 5: Solve for x
    x = 8,048,823.93/3,279.09
  6. Step 6: Final answer
    x = 2,454.59

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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.