Home / 3,790.22-5,231.18-2,196.68

Finding the Fourth Proportional to 3,790.22, 5,231.18 and 2,196.68

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Solution

The fourth proportional to 3,790.22, 5,231.18 and 2,196.68 is: 3,031.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790.22 : 5,231.18 = 2,196.68 : x
  2. Step 2: Convert to fraction form
    3,790.22/5,231.18 = 2,196.68/x
  3. Step 3: Cross multiply
    3,790.22x = 5,231.18 × 2,196.68
  4. Step 4: Simplify right side
    3,790.22x = 11,491,207.82
  5. Step 5: Solve for x
    x = 11,491,207.82/3,790.22
  6. Step 6: Final answer
    x = 3,031.81

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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.