Home / 3,221.32-4,828.61-1,831.66

Finding the Fourth Proportional to 3,221.32, 4,828.61 and 1,831.66

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Solution

The fourth proportional to 3,221.32, 4,828.61 and 1,831.66 is: 2,745.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.32 : 4,828.61 = 1,831.66 : x
  2. Step 2: Convert to fraction form
    3,221.32/4,828.61 = 1,831.66/x
  3. Step 3: Cross multiply
    3,221.32x = 4,828.61 × 1,831.66
  4. Step 4: Simplify right side
    3,221.32x = 8,844,391.46
  5. Step 5: Solve for x
    x = 8,844,391.46/3,221.32
  6. Step 6: Final answer
    x = 2,745.58

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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.