Home / 3,561.20-5,341.63-1,221.41

Finding the Fourth Proportional to 3,561.20, 5,341.63 and 1,221.41

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Solution

The fourth proportional to 3,561.20, 5,341.63 and 1,221.41 is: 1,832.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,561.20 : 5,341.63 = 1,221.41 : x
  2. Step 2: Convert to fraction form
    3,561.20/5,341.63 = 1,221.41/x
  3. Step 3: Cross multiply
    3,561.20x = 5,341.63 × 1,221.41
  4. Step 4: Simplify right side
    3,561.20x = 6,524,320.30
  5. Step 5: Solve for x
    x = 6,524,320.30/3,561.20
  6. Step 6: Final answer
    x = 1,832.06

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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.