Home / 3,170.82-4,365.78-2,879.22

Finding the Fourth Proportional to 3,170.82, 4,365.78 and 2,879.22

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Solution

The fourth proportional to 3,170.82, 4,365.78 and 2,879.22 is: 3,964.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,170.82 : 4,365.78 = 2,879.22 : x
  2. Step 2: Convert to fraction form
    3,170.82/4,365.78 = 2,879.22/x
  3. Step 3: Cross multiply
    3,170.82x = 4,365.78 × 2,879.22
  4. Step 4: Simplify right side
    3,170.82x = 12,570,041.09
  5. Step 5: Solve for x
    x = 12,570,041.09/3,170.82
  6. Step 6: Final answer
    x = 3,964.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.