Home / 1,222.92-1,831.10-1,028.52

Finding the Fourth Proportional to 1,222.92, 1,831.10 and 1,028.52

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Solution

The fourth proportional to 1,222.92, 1,831.10 and 1,028.52 is: 1,540.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222.92 : 1,831.10 = 1,028.52 : x
  2. Step 2: Convert to fraction form
    1,222.92/1,831.10 = 1,028.52/x
  3. Step 3: Cross multiply
    1,222.92x = 1,831.10 × 1,028.52
  4. Step 4: Simplify right side
    1,222.92x = 1,883,322.97
  5. Step 5: Solve for x
    x = 1,883,322.97/1,222.92
  6. Step 6: Final answer
    x = 1,540.02

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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.