Home / 2,288.94-3,431.37-827.77

Finding the Fourth Proportional to 2,288.94, 3,431.37 and 827.77

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Solution

The fourth proportional to 2,288.94, 3,431.37 and 827.77 is: 1,240.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,288.94 : 3,431.37 = 827.77 : x
  2. Step 2: Convert to fraction form
    2,288.94/3,431.37 = 827.77/x
  3. Step 3: Cross multiply
    2,288.94x = 3,431.37 × 827.77
  4. Step 4: Simplify right side
    2,288.94x = 2,840,367.99
  5. Step 5: Solve for x
    x = 2,840,367.99/2,288.94
  6. Step 6: Final answer
    x = 1,240.91

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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.