Home / 3,645.72-5,468.64-2,186.04

Finding the Fourth Proportional to 3,645.72, 5,468.64 and 2,186.04

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Solution

The fourth proportional to 3,645.72, 5,468.64 and 2,186.04 is: 3,279.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,645.72 : 5,468.64 = 2,186.04 : x
  2. Step 2: Convert to fraction form
    3,645.72/5,468.64 = 2,186.04/x
  3. Step 3: Cross multiply
    3,645.72x = 5,468.64 × 2,186.04
  4. Step 4: Simplify right side
    3,645.72x = 11,954,665.79
  5. Step 5: Solve for x
    x = 11,954,665.79/3,645.72
  6. Step 6: Final answer
    x = 3,279.10

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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.