Home / 3,764.62-5,641.89-2,120.50

Finding the Fourth Proportional to 3,764.62, 5,641.89 and 2,120.50

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Solution

The fourth proportional to 3,764.62, 5,641.89 and 2,120.50 is: 3,177.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,764.62 : 5,641.89 = 2,120.50 : x
  2. Step 2: Convert to fraction form
    3,764.62/5,641.89 = 2,120.50/x
  3. Step 3: Cross multiply
    3,764.62x = 5,641.89 × 2,120.50
  4. Step 4: Simplify right side
    3,764.62x = 11,963,627.75
  5. Step 5: Solve for x
    x = 11,963,627.75/3,764.62
  6. Step 6: Final answer
    x = 3,177.91

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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.