Home / 2,789.23-4,183.73-1,145.73

Finding the Fourth Proportional to 2,789.23, 4,183.73 and 1,145.73

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Solution

The fourth proportional to 2,789.23, 4,183.73 and 1,145.73 is: 1,718.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.23 : 4,183.73 = 1,145.73 : x
  2. Step 2: Convert to fraction form
    2,789.23/4,183.73 = 1,145.73/x
  3. Step 3: Cross multiply
    2,789.23x = 4,183.73 × 1,145.73
  4. Step 4: Simplify right side
    2,789.23x = 4,793,424.97
  5. Step 5: Solve for x
    x = 4,793,424.97/2,789.23
  6. Step 6: Final answer
    x = 1,718.55

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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.