Home / 3,220.61-4,831.36-1,028.59

Finding the Fourth Proportional to 3,220.61, 4,831.36 and 1,028.59

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Solution

The fourth proportional to 3,220.61, 4,831.36 and 1,028.59 is: 1,543.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.61 : 4,831.36 = 1,028.59 : x
  2. Step 2: Convert to fraction form
    3,220.61/4,831.36 = 1,028.59/x
  3. Step 3: Cross multiply
    3,220.61x = 4,831.36 × 1,028.59
  4. Step 4: Simplify right side
    3,220.61x = 4,969,473.93
  5. Step 5: Solve for x
    x = 4,969,473.93/3,220.61
  6. Step 6: Final answer
    x = 1,543.02

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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.