Home / 3,212.88-4,812.72-2,223.24

Finding the Fourth Proportional to 3,212.88, 4,812.72 and 2,223.24

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Solution

The fourth proportional to 3,212.88, 4,812.72 and 2,223.24 is: 3,330.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.88 : 4,812.72 = 2,223.24 : x
  2. Step 2: Convert to fraction form
    3,212.88/4,812.72 = 2,223.24/x
  3. Step 3: Cross multiply
    3,212.88x = 4,812.72 × 2,223.24
  4. Step 4: Simplify right side
    3,212.88x = 10,699,831.61
  5. Step 5: Solve for x
    x = 10,699,831.61/3,212.88
  6. Step 6: Final answer
    x = 3,330.29

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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.