Home / 3,112.65-4,667.76-1,163.79

Finding the Fourth Proportional to 3,112.65, 4,667.76 and 1,163.79

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Solution

The fourth proportional to 3,112.65, 4,667.76 and 1,163.79 is: 1,745.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.65 : 4,667.76 = 1,163.79 : x
  2. Step 2: Convert to fraction form
    3,112.65/4,667.76 = 1,163.79/x
  3. Step 3: Cross multiply
    3,112.65x = 4,667.76 × 1,163.79
  4. Step 4: Simplify right side
    3,112.65x = 5,432,292.41
  5. Step 5: Solve for x
    x = 5,432,292.41/3,112.65
  6. Step 6: Final answer
    x = 1,745.23

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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.