Home / 3,613.55-4,985.97-2,198

Finding the Fourth Proportional to 3,613.55, 4,985.97 and 2,198

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Solution

The fourth proportional to 3,613.55, 4,985.97 and 2,198 is: 3,032.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.55 : 4,985.97 = 2,198 : x
  2. Step 2: Convert to fraction form
    3,613.55/4,985.97 = 2,198/x
  3. Step 3: Cross multiply
    3,613.55x = 4,985.97 × 2,198
  4. Step 4: Simplify right side
    3,613.55x = 10,959,162.06
  5. Step 5: Solve for x
    x = 10,959,162.06/3,613.55
  6. Step 6: Final answer
    x = 3,032.80

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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.