Home / 3,219.16-4,831.47-1,272.73

Finding the Fourth Proportional to 3,219.16, 4,831.47 and 1,272.73

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Solution

The fourth proportional to 3,219.16, 4,831.47 and 1,272.73 is: 1,910.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.16 : 4,831.47 = 1,272.73 : x
  2. Step 2: Convert to fraction form
    3,219.16/4,831.47 = 1,272.73/x
  3. Step 3: Cross multiply
    3,219.16x = 4,831.47 × 1,272.73
  4. Step 4: Simplify right side
    3,219.16x = 6,149,144.73
  5. Step 5: Solve for x
    x = 6,149,144.73/3,219.16
  6. Step 6: Final answer
    x = 1,910.17

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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.