Home / 3,986.56-5,981.34-1,793.68

Finding the Fourth Proportional to 3,986.56, 5,981.34 and 1,793.68

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Solution

The fourth proportional to 3,986.56, 5,981.34 and 1,793.68 is: 2,691.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986.56 : 5,981.34 = 1,793.68 : x
  2. Step 2: Convert to fraction form
    3,986.56/5,981.34 = 1,793.68/x
  3. Step 3: Cross multiply
    3,986.56x = 5,981.34 × 1,793.68
  4. Step 4: Simplify right side
    3,986.56x = 10,728,609.93
  5. Step 5: Solve for x
    x = 10,728,609.93/3,986.56
  6. Step 6: Final answer
    x = 2,691.19

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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.