Home / 2,263.28-3,391.22-2,176.78

Finding the Fourth Proportional to 2,263.28, 3,391.22 and 2,176.78

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Solution

The fourth proportional to 2,263.28, 3,391.22 and 2,176.78 is: 3,261.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,263.28 : 3,391.22 = 2,176.78 : x
  2. Step 2: Convert to fraction form
    2,263.28/3,391.22 = 2,176.78/x
  3. Step 3: Cross multiply
    2,263.28x = 3,391.22 × 2,176.78
  4. Step 4: Simplify right side
    2,263.28x = 7,381,928.99
  5. Step 5: Solve for x
    x = 7,381,928.99/2,263.28
  6. Step 6: Final answer
    x = 3,261.61

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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.