Home / 3,163.79-4,745.76-1,086.19

Finding the Fourth Proportional to 3,163.79, 4,745.76 and 1,086.19

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Solution

The fourth proportional to 3,163.79, 4,745.76 and 1,086.19 is: 1,629.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163.79 : 4,745.76 = 1,086.19 : x
  2. Step 2: Convert to fraction form
    3,163.79/4,745.76 = 1,086.19/x
  3. Step 3: Cross multiply
    3,163.79x = 4,745.76 × 1,086.19
  4. Step 4: Simplify right side
    3,163.79x = 5,154,781.12
  5. Step 5: Solve for x
    x = 5,154,781.12/3,163.79
  6. Step 6: Final answer
    x = 1,629.30

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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.