Home / 3,828.40-5,743.96-2,073.20

Finding the Fourth Proportional to 3,828.40, 5,743.96 and 2,073.20

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Solution

The fourth proportional to 3,828.40, 5,743.96 and 2,073.20 is: 3,110.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.40 : 5,743.96 = 2,073.20 : x
  2. Step 2: Convert to fraction form
    3,828.40/5,743.96 = 2,073.20/x
  3. Step 3: Cross multiply
    3,828.40x = 5,743.96 × 2,073.20
  4. Step 4: Simplify right side
    3,828.40x = 11,908,377.87
  5. Step 5: Solve for x
    x = 11,908,377.87/3,828.40
  6. Step 6: Final answer
    x = 3,110.54

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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.