Home / 3,613.82-4,989.22-2,288.66

Finding the Fourth Proportional to 3,613.82, 4,989.22 and 2,288.66

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Solution

The fourth proportional to 3,613.82, 4,989.22 and 2,288.66 is: 3,159.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.82 : 4,989.22 = 2,288.66 : x
  2. Step 2: Convert to fraction form
    3,613.82/4,989.22 = 2,288.66/x
  3. Step 3: Cross multiply
    3,613.82x = 4,989.22 × 2,288.66
  4. Step 4: Simplify right side
    3,613.82x = 11,418,628.25
  5. Step 5: Solve for x
    x = 11,418,628.25/3,613.82
  6. Step 6: Final answer
    x = 3,159.71

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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.