Home / 3,220.62-4,829.61-1,028.76

Finding the Fourth Proportional to 3,220.62, 4,829.61 and 1,028.76

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Solution

The fourth proportional to 3,220.62, 4,829.61 and 1,028.76 is: 1,542.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.62 : 4,829.61 = 1,028.76 : x
  2. Step 2: Convert to fraction form
    3,220.62/4,829.61 = 1,028.76/x
  3. Step 3: Cross multiply
    3,220.62x = 4,829.61 × 1,028.76
  4. Step 4: Simplify right side
    3,220.62x = 4,968,509.58
  5. Step 5: Solve for x
    x = 4,968,509.58/3,220.62
  6. Step 6: Final answer
    x = 1,542.72

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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.