Home / 3,821.20-5,732.10-1,629.95

Finding the Fourth Proportional to 3,821.20, 5,732.10 and 1,629.95

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Solution

The fourth proportional to 3,821.20, 5,732.10 and 1,629.95 is: 2,445.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.20 : 5,732.10 = 1,629.95 : x
  2. Step 2: Convert to fraction form
    3,821.20/5,732.10 = 1,629.95/x
  3. Step 3: Cross multiply
    3,821.20x = 5,732.10 × 1,629.95
  4. Step 4: Simplify right side
    3,821.20x = 9,343,007.73
  5. Step 5: Solve for x
    x = 9,343,007.73/3,821.20
  6. Step 6: Final answer
    x = 2,445.05

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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.