Home / 2,205.03-3,306.68-1,108.63

Finding the Fourth Proportional to 2,205.03, 3,306.68 and 1,108.63

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Solution

The fourth proportional to 2,205.03, 3,306.68 and 1,108.63 is: 1,662.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.03 : 3,306.68 = 1,108.63 : x
  2. Step 2: Convert to fraction form
    2,205.03/3,306.68 = 1,108.63/x
  3. Step 3: Cross multiply
    2,205.03x = 3,306.68 × 1,108.63
  4. Step 4: Simplify right side
    2,205.03x = 3,665,884.65
  5. Step 5: Solve for x
    x = 3,665,884.65/2,205.03
  6. Step 6: Final answer
    x = 1,662.51

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Half scale
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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.