Home / 3,765.20-5,641.63-2,667.61

Finding the Fourth Proportional to 3,765.20, 5,641.63 and 2,667.61

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Solution

The fourth proportional to 3,765.20, 5,641.63 and 2,667.61 is: 3,997.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,765.20 : 5,641.63 = 2,667.61 : x
  2. Step 2: Convert to fraction form
    3,765.20/5,641.63 = 2,667.61/x
  3. Step 3: Cross multiply
    3,765.20x = 5,641.63 × 2,667.61
  4. Step 4: Simplify right side
    3,765.20x = 15,049,647.83
  5. Step 5: Solve for x
    x = 15,049,647.83/3,765.20
  6. Step 6: Final answer
    x = 3,997.04

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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.