Home / 3,251.90-4,487.96-1,993.79

Finding the Fourth Proportional to 3,251.90, 4,487.96 and 1,993.79

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Solution

The fourth proportional to 3,251.90, 4,487.96 and 1,993.79 is: 2,751.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,251.90 : 4,487.96 = 1,993.79 : x
  2. Step 2: Convert to fraction form
    3,251.90/4,487.96 = 1,993.79/x
  3. Step 3: Cross multiply
    3,251.90x = 4,487.96 × 1,993.79
  4. Step 4: Simplify right side
    3,251.90x = 8,948,039.80
  5. Step 5: Solve for x
    x = 8,948,039.80/3,251.90
  6. Step 6: Final answer
    x = 2,751.64

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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.