Home / 2,850.72-4,272.84-2,785.92

Finding the Fourth Proportional to 2,850.72, 4,272.84 and 2,785.92

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Solution

The fourth proportional to 2,850.72, 4,272.84 and 2,785.92 is: 4,175.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,850.72 : 4,272.84 = 2,785.92 : x
  2. Step 2: Convert to fraction form
    2,850.72/4,272.84 = 2,785.92/x
  3. Step 3: Cross multiply
    2,850.72x = 4,272.84 × 2,785.92
  4. Step 4: Simplify right side
    2,850.72x = 11,903,790.41
  5. Step 5: Solve for x
    x = 11,903,790.41/2,850.72
  6. Step 6: Final answer
    x = 4,175.71

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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.