Home / 2,161.36-3,237.12-1,772.56

Finding the Fourth Proportional to 2,161.36, 3,237.12 and 1,772.56

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Solution

The fourth proportional to 2,161.36, 3,237.12 and 1,772.56 is: 2,654.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.36 : 3,237.12 = 1,772.56 : x
  2. Step 2: Convert to fraction form
    2,161.36/3,237.12 = 1,772.56/x
  3. Step 3: Cross multiply
    2,161.36x = 3,237.12 × 1,772.56
  4. Step 4: Simplify right side
    2,161.36x = 5,737,989.43
  5. Step 5: Solve for x
    x = 5,737,989.43/2,161.36
  6. Step 6: Final answer
    x = 2,654.81

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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.