Home / 2,790.77-4,183.19-1,326.83

Finding the Fourth Proportional to 2,790.77, 4,183.19 and 1,326.83

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Solution

The fourth proportional to 2,790.77, 4,183.19 and 1,326.83 is: 1,988.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.77 : 4,183.19 = 1,326.83 : x
  2. Step 2: Convert to fraction form
    2,790.77/4,183.19 = 1,326.83/x
  3. Step 3: Cross multiply
    2,790.77x = 4,183.19 × 1,326.83
  4. Step 4: Simplify right side
    2,790.77x = 5,550,375.35
  5. Step 5: Solve for x
    x = 5,550,375.35/2,790.77
  6. Step 6: Final answer
    x = 1,988.83

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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.