Home / 3,763.26-5,641.70-2,120.28

Finding the Fourth Proportional to 3,763.26, 5,641.70 and 2,120.28

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Solution

The fourth proportional to 3,763.26, 5,641.70 and 2,120.28 is: 3,178.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,763.26 : 5,641.70 = 2,120.28 : x
  2. Step 2: Convert to fraction form
    3,763.26/5,641.70 = 2,120.28/x
  3. Step 3: Cross multiply
    3,763.26x = 5,641.70 × 2,120.28
  4. Step 4: Simplify right side
    3,763.26x = 11,961,983.68
  5. Step 5: Solve for x
    x = 11,961,983.68/3,763.26
  6. Step 6: Final answer
    x = 3,178.62

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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.