Home / 2,589.50-3,884.25-1,108.51

Finding the Fourth Proportional to 2,589.50, 3,884.25 and 1,108.51

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Solution

The fourth proportional to 2,589.50, 3,884.25 and 1,108.51 is: 1,662.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,589.50 : 3,884.25 = 1,108.51 : x
  2. Step 2: Convert to fraction form
    2,589.50/3,884.25 = 1,108.51/x
  3. Step 3: Cross multiply
    2,589.50x = 3,884.25 × 1,108.51
  4. Step 4: Simplify right side
    2,589.50x = 4,305,729.97
  5. Step 5: Solve for x
    x = 4,305,729.97/2,589.50
  6. Step 6: Final answer
    x = 1,662.77

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Half scale
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Double scale
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Similar ratio
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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.