Home / 4,310.82-6,469.20-2,120.58

Finding the Fourth Proportional to 4,310.82, 6,469.20 and 2,120.58

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Solution

The fourth proportional to 4,310.82, 6,469.20 and 2,120.58 is: 3,182.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,310.82 : 6,469.20 = 2,120.58 : x
  2. Step 2: Convert to fraction form
    4,310.82/6,469.20 = 2,120.58/x
  3. Step 3: Cross multiply
    4,310.82x = 6,469.20 × 2,120.58
  4. Step 4: Simplify right side
    4,310.82x = 13,718,456.14
  5. Step 5: Solve for x
    x = 13,718,456.14/4,310.82
  6. Step 6: Final answer
    x = 3,182.33

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1.5x scale

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.