Home / 7,171.38-10,734.03-3,831.28

Finding the Fourth Proportional to 7,171.38, 10,734.03 and 3,831.28

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Solution

The fourth proportional to 7,171.38, 10,734.03 and 3,831.28 is: 5,734.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,171.38 : 10,734.03 = 3,831.28 : x
  2. Step 2: Convert to fraction form
    7,171.38/10,734.03 = 3,831.28/x
  3. Step 3: Cross multiply
    7,171.38x = 10,734.03 × 3,831.28
  4. Step 4: Simplify right side
    7,171.38x = 41,125,020.79
  5. Step 5: Solve for x
    x = 41,125,020.79/7,171.38
  6. Step 6: Final answer
    x = 5,734.61

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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.