Home / 3,619.62-5,445.90-2,159.87

Finding the Fourth Proportional to 3,619.62, 5,445.90 and 2,159.87

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Solution

The fourth proportional to 3,619.62, 5,445.90 and 2,159.87 is: 3,249.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.62 : 5,445.90 = 2,159.87 : x
  2. Step 2: Convert to fraction form
    3,619.62/5,445.90 = 2,159.87/x
  3. Step 3: Cross multiply
    3,619.62x = 5,445.90 × 2,159.87
  4. Step 4: Simplify right side
    3,619.62x = 11,762,408.80
  5. Step 5: Solve for x
    x = 11,762,408.80/3,619.62
  6. Step 6: Final answer
    x = 3,249.63

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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.