Home / 2,057.20-3,085.80-1,193.20

Finding the Fourth Proportional to 2,057.20, 3,085.80 and 1,193.20

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Solution

The fourth proportional to 2,057.20, 3,085.80 and 1,193.20 is: 1,789.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,057.20 : 3,085.80 = 1,193.20 : x
  2. Step 2: Convert to fraction form
    2,057.20/3,085.80 = 1,193.20/x
  3. Step 3: Cross multiply
    2,057.20x = 3,085.80 × 1,193.20
  4. Step 4: Simplify right side
    2,057.20x = 3,681,976.56
  5. Step 5: Solve for x
    x = 3,681,976.56/2,057.20
  6. Step 6: Final answer
    x = 1,789.80

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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.