Home / 3,163.10-4,745.32-1,188.75

Finding the Fourth Proportional to 3,163.10, 4,745.32 and 1,188.75

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Solution

The fourth proportional to 3,163.10, 4,745.32 and 1,188.75 is: 1,783.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163.10 : 4,745.32 = 1,188.75 : x
  2. Step 2: Convert to fraction form
    3,163.10/4,745.32 = 1,188.75/x
  3. Step 3: Cross multiply
    3,163.10x = 4,745.32 × 1,188.75
  4. Step 4: Simplify right side
    3,163.10x = 5,641,002.52
  5. Step 5: Solve for x
    x = 5,641,002.52/3,163.10
  6. Step 6: Final answer
    x = 1,783.38

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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.