Home / 3,163.47-4,745.33-1,188.90

Finding the Fourth Proportional to 3,163.47, 4,745.33 and 1,188.90

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Solution

The fourth proportional to 3,163.47, 4,745.33 and 1,188.90 is: 1,783.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163.47 : 4,745.33 = 1,188.90 : x
  2. Step 2: Convert to fraction form
    3,163.47/4,745.33 = 1,188.90/x
  3. Step 3: Cross multiply
    3,163.47x = 4,745.33 × 1,188.90
  4. Step 4: Simplify right side
    3,163.47x = 5,641,722.84
  5. Step 5: Solve for x
    x = 5,641,722.84/3,163.47
  6. Step 6: Final answer
    x = 1,783.40

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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.