Home / 3,687.14-5,530.17-1,221.50

Finding the Fourth Proportional to 3,687.14, 5,530.17 and 1,221.50

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Solution

The fourth proportional to 3,687.14, 5,530.17 and 1,221.50 is: 1,832.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687.14 : 5,530.17 = 1,221.50 : x
  2. Step 2: Convert to fraction form
    3,687.14/5,530.17 = 1,221.50/x
  3. Step 3: Cross multiply
    3,687.14x = 5,530.17 × 1,221.50
  4. Step 4: Simplify right side
    3,687.14x = 6,755,102.66
  5. Step 5: Solve for x
    x = 6,755,102.66/3,687.14
  6. Step 6: Final answer
    x = 1,832.07

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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.