Home / 3,949.35-5,918.55-1,481.68

Finding the Fourth Proportional to 3,949.35, 5,918.55 and 1,481.68

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Solution

The fourth proportional to 3,949.35, 5,918.55 and 1,481.68 is: 2,220.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949.35 : 5,918.55 = 1,481.68 : x
  2. Step 2: Convert to fraction form
    3,949.35/5,918.55 = 1,481.68/x
  3. Step 3: Cross multiply
    3,949.35x = 5,918.55 × 1,481.68
  4. Step 4: Simplify right side
    3,949.35x = 8,769,397.16
  5. Step 5: Solve for x
    x = 8,769,397.16/3,949.35
  6. Step 6: Final answer
    x = 2,220.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.