Home / 2,193.38-3,289.56-1,081.70

Finding the Fourth Proportional to 2,193.38, 3,289.56 and 1,081.70

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Solution

The fourth proportional to 2,193.38, 3,289.56 and 1,081.70 is: 1,622.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,193.38 : 3,289.56 = 1,081.70 : x
  2. Step 2: Convert to fraction form
    2,193.38/3,289.56 = 1,081.70/x
  3. Step 3: Cross multiply
    2,193.38x = 3,289.56 × 1,081.70
  4. Step 4: Simplify right side
    2,193.38x = 3,558,317.05
  5. Step 5: Solve for x
    x = 3,558,317.05/2,193.38
  6. Step 6: Final answer
    x = 1,622.30

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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.