Home / 3,577.89-4,936.68-2,161.81

Finding the Fourth Proportional to 3,577.89, 4,936.68 and 2,161.81

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Solution

The fourth proportional to 3,577.89, 4,936.68 and 2,161.81 is: 2,982.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,577.89 : 4,936.68 = 2,161.81 : x
  2. Step 2: Convert to fraction form
    3,577.89/4,936.68 = 2,161.81/x
  3. Step 3: Cross multiply
    3,577.89x = 4,936.68 × 2,161.81
  4. Step 4: Simplify right side
    3,577.89x = 10,672,164.19
  5. Step 5: Solve for x
    x = 10,672,164.19/3,577.89
  6. Step 6: Final answer
    x = 2,982.81

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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.