Home / 2,785.55-4,177.17-936.18

Finding the Fourth Proportional to 2,785.55, 4,177.17 and 936.18

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Solution

The fourth proportional to 2,785.55, 4,177.17 and 936.18 is: 1,403.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.55 : 4,177.17 = 936.18 : x
  2. Step 2: Convert to fraction form
    2,785.55/4,177.17 = 936.18/x
  3. Step 3: Cross multiply
    2,785.55x = 4,177.17 × 936.18
  4. Step 4: Simplify right side
    2,785.55x = 3,910,583.01
  5. Step 5: Solve for x
    x = 3,910,583.01/2,785.55
  6. Step 6: Final answer
    x = 1,403.88

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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.