Home / 3,209.23-4,818.30-2,120.59

Finding the Fourth Proportional to 3,209.23, 4,818.30 and 2,120.59

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Solution

The fourth proportional to 3,209.23, 4,818.30 and 2,120.59 is: 3,183.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.23 : 4,818.30 = 2,120.59 : x
  2. Step 2: Convert to fraction form
    3,209.23/4,818.30 = 2,120.59/x
  3. Step 3: Cross multiply
    3,209.23x = 4,818.30 × 2,120.59
  4. Step 4: Simplify right side
    3,209.23x = 10,217,638.80
  5. Step 5: Solve for x
    x = 10,217,638.80/3,209.23
  6. Step 6: Final answer
    x = 3,183.83

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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.