Home / 3,505.79-5,251.53-2,185.22

Finding the Fourth Proportional to 3,505.79, 5,251.53 and 2,185.22

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Solution

The fourth proportional to 3,505.79, 5,251.53 and 2,185.22 is: 3,273.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,505.79 : 5,251.53 = 2,185.22 : x
  2. Step 2: Convert to fraction form
    3,505.79/5,251.53 = 2,185.22/x
  3. Step 3: Cross multiply
    3,505.79x = 5,251.53 × 2,185.22
  4. Step 4: Simplify right side
    3,505.79x = 11,475,748.39
  5. Step 5: Solve for x
    x = 11,475,748.39/3,505.79
  6. Step 6: Final answer
    x = 3,273.37

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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.