Home / 3,530.25-5,297.81-1,221.75

Finding the Fourth Proportional to 3,530.25, 5,297.81 and 1,221.75

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Solution

The fourth proportional to 3,530.25, 5,297.81 and 1,221.75 is: 1,833.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,530.25 : 5,297.81 = 1,221.75 : x
  2. Step 2: Convert to fraction form
    3,530.25/5,297.81 = 1,221.75/x
  3. Step 3: Cross multiply
    3,530.25x = 5,297.81 × 1,221.75
  4. Step 4: Simplify right side
    3,530.25x = 6,472,593.26
  5. Step 5: Solve for x
    x = 6,472,593.26/3,530.25
  6. Step 6: Final answer
    x = 1,833.47

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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.