Home / 3,115.22-4,299.29-2,327.90

Finding the Fourth Proportional to 3,115.22, 4,299.29 and 2,327.90

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Solution

The fourth proportional to 3,115.22, 4,299.29 and 2,327.90 is: 3,212.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.22 : 4,299.29 = 2,327.90 : x
  2. Step 2: Convert to fraction form
    3,115.22/4,299.29 = 2,327.90/x
  3. Step 3: Cross multiply
    3,115.22x = 4,299.29 × 2,327.90
  4. Step 4: Simplify right side
    3,115.22x = 10,008,284.06
  5. Step 5: Solve for x
    x = 10,008,284.06/3,115.22
  6. Step 6: Final answer
    x = 3,212.71

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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.