Home / 3,529.68-5,295-1,221.36

Finding the Fourth Proportional to 3,529.68, 5,295 and 1,221.36

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Solution

The fourth proportional to 3,529.68, 5,295 and 1,221.36 is: 1,832.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,529.68 : 5,295 = 1,221.36 : x
  2. Step 2: Convert to fraction form
    3,529.68/5,295 = 1,221.36/x
  3. Step 3: Cross multiply
    3,529.68x = 5,295 × 1,221.36
  4. Step 4: Simplify right side
    3,529.68x = 6,467,101.20
  5. Step 5: Solve for x
    x = 6,467,101.20/3,529.68
  6. Step 6: Final answer
    x = 1,832.21

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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.