Home / 3,219.90-4,829.68-1,028.53

Finding the Fourth Proportional to 3,219.90, 4,829.68 and 1,028.53

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Solution

The fourth proportional to 3,219.90, 4,829.68 and 1,028.53 is: 1,542.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.90 : 4,829.68 = 1,028.53 : x
  2. Step 2: Convert to fraction form
    3,219.90/4,829.68 = 1,028.53/x
  3. Step 3: Cross multiply
    3,219.90x = 4,829.68 × 1,028.53
  4. Step 4: Simplify right side
    3,219.90x = 4,967,470.77
  5. Step 5: Solve for x
    x = 4,967,470.77/3,219.90
  6. Step 6: Final answer
    x = 1,542.74

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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.