Home / 3,828.40-5,743.14-1,880.68

Finding the Fourth Proportional to 3,828.40, 5,743.14 and 1,880.68

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Solution

The fourth proportional to 3,828.40, 5,743.14 and 1,880.68 is: 2,821.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.40 : 5,743.14 = 1,880.68 : x
  2. Step 2: Convert to fraction form
    3,828.40/5,743.14 = 1,880.68/x
  3. Step 3: Cross multiply
    3,828.40x = 5,743.14 × 1,880.68
  4. Step 4: Simplify right side
    3,828.40x = 10,801,008.54
  5. Step 5: Solve for x
    x = 10,801,008.54/3,828.40
  6. Step 6: Final answer
    x = 2,821.29

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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.