Home / 3,149.80-4,344.72-2,486.44

Finding the Fourth Proportional to 3,149.80, 4,344.72 and 2,486.44

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Solution

The fourth proportional to 3,149.80, 4,344.72 and 2,486.44 is: 3,429.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.80 : 4,344.72 = 2,486.44 : x
  2. Step 2: Convert to fraction form
    3,149.80/4,344.72 = 2,486.44/x
  3. Step 3: Cross multiply
    3,149.80x = 4,344.72 × 2,486.44
  4. Step 4: Simplify right side
    3,149.80x = 10,802,885.60
  5. Step 5: Solve for x
    x = 10,802,885.60/3,149.80
  6. Step 6: Final answer
    x = 3,429.71

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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.