Home / 3,821.12-5,732.14-1,355.42

Finding the Fourth Proportional to 3,821.12, 5,732.14 and 1,355.42

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Solution

The fourth proportional to 3,821.12, 5,732.14 and 1,355.42 is: 2,033.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.12 : 5,732.14 = 1,355.42 : x
  2. Step 2: Convert to fraction form
    3,821.12/5,732.14 = 1,355.42/x
  3. Step 3: Cross multiply
    3,821.12x = 5,732.14 × 1,355.42
  4. Step 4: Simplify right side
    3,821.12x = 7,769,457.20
  5. Step 5: Solve for x
    x = 7,769,457.20/3,821.12
  6. Step 6: Final answer
    x = 2,033.29

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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.