Home / 2,174.49-3,261.69-531.05

Finding the Fourth Proportional to 2,174.49, 3,261.69 and 531.05

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Solution

The fourth proportional to 2,174.49, 3,261.69 and 531.05 is: 796.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,174.49 : 3,261.69 = 531.05 : x
  2. Step 2: Convert to fraction form
    2,174.49/3,261.69 = 531.05/x
  3. Step 3: Cross multiply
    2,174.49x = 3,261.69 × 531.05
  4. Step 4: Simplify right side
    2,174.49x = 1,732,104.17
  5. Step 5: Solve for x
    x = 1,732,104.17/2,174.49
  6. Step 6: Final answer
    x = 796.56

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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.