Home / 3,982.20-5,492.64-3,236.16

Finding the Fourth Proportional to 3,982.20, 5,492.64 and 3,236.16

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Solution

The fourth proportional to 3,982.20, 5,492.64 and 3,236.16 is: 4,463.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.20 : 5,492.64 = 3,236.16 : x
  2. Step 2: Convert to fraction form
    3,982.20/5,492.64 = 3,236.16/x
  3. Step 3: Cross multiply
    3,982.20x = 5,492.64 × 3,236.16
  4. Step 4: Simplify right side
    3,982.20x = 17,775,061.86
  5. Step 5: Solve for x
    x = 17,775,061.86/3,982.20
  6. Step 6: Final answer
    x = 4,463.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.