Home / 3,821.92-5,732.46-1,868.20

Finding the Fourth Proportional to 3,821.92, 5,732.46 and 1,868.20

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Solution

The fourth proportional to 3,821.92, 5,732.46 and 1,868.20 is: 2,802.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.92 : 5,732.46 = 1,868.20 : x
  2. Step 2: Convert to fraction form
    3,821.92/5,732.46 = 1,868.20/x
  3. Step 3: Cross multiply
    3,821.92x = 5,732.46 × 1,868.20
  4. Step 4: Simplify right side
    3,821.92x = 10,709,381.77
  5. Step 5: Solve for x
    x = 10,709,381.77/3,821.92
  6. Step 6: Final answer
    x = 2,802.09

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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.