Home / 4,761.21-7,129.39-3,831.69

Finding the Fourth Proportional to 4,761.21, 7,129.39 and 3,831.69

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Solution

The fourth proportional to 4,761.21, 7,129.39 and 3,831.69 is: 5,737.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,761.21 : 7,129.39 = 3,831.69 : x
  2. Step 2: Convert to fraction form
    4,761.21/7,129.39 = 3,831.69/x
  3. Step 3: Cross multiply
    4,761.21x = 7,129.39 × 3,831.69
  4. Step 4: Simplify right side
    4,761.21x = 27,317,612.37
  5. Step 5: Solve for x
    x = 27,317,612.37/4,761.21
  6. Step 6: Final answer
    x = 5,737.54

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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.