Home / 2,189.13-3,284.60-1,092.89

Finding the Fourth Proportional to 2,189.13, 3,284.60 and 1,092.89

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Solution

The fourth proportional to 2,189.13, 3,284.60 and 1,092.89 is: 1,639.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189.13 : 3,284.60 = 1,092.89 : x
  2. Step 2: Convert to fraction form
    2,189.13/3,284.60 = 1,092.89/x
  3. Step 3: Cross multiply
    2,189.13x = 3,284.60 × 1,092.89
  4. Step 4: Simplify right side
    2,189.13x = 3,589,715.39
  5. Step 5: Solve for x
    x = 3,589,715.39/2,189.13
  6. Step 6: Final answer
    x = 1,639.79

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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.