Home / 3,149.89-4,346.97-1,805.49

Finding the Fourth Proportional to 3,149.89, 4,346.97 and 1,805.49

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Solution

The fourth proportional to 3,149.89, 4,346.97 and 1,805.49 is: 2,491.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.89 : 4,346.97 = 1,805.49 : x
  2. Step 2: Convert to fraction form
    3,149.89/4,346.97 = 1,805.49/x
  3. Step 3: Cross multiply
    3,149.89x = 4,346.97 × 1,805.49
  4. Step 4: Simplify right side
    3,149.89x = 7,848,404.09
  5. Step 5: Solve for x
    x = 7,848,404.09/3,149.89
  6. Step 6: Final answer
    x = 2,491.65

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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.