Home / 7,220.84-10,831.68-2,027.12

Finding the Fourth Proportional to 7,220.84, 10,831.68 and 2,027.12

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Solution

The fourth proportional to 7,220.84, 10,831.68 and 2,027.12 is: 3,040.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.84 : 10,831.68 = 2,027.12 : x
  2. Step 2: Convert to fraction form
    7,220.84/10,831.68 = 2,027.12/x
  3. Step 3: Cross multiply
    7,220.84x = 10,831.68 × 2,027.12
  4. Step 4: Simplify right side
    7,220.84x = 21,957,115.16
  5. Step 5: Solve for x
    x = 21,957,115.16/7,220.84
  6. Step 6: Final answer
    x = 3,040.80

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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.