Home / 3,540.21-5,309.09-1,199.66

Finding the Fourth Proportional to 3,540.21, 5,309.09 and 1,199.66

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Solution

The fourth proportional to 3,540.21, 5,309.09 and 1,199.66 is: 1,799.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.21 : 5,309.09 = 1,199.66 : x
  2. Step 2: Convert to fraction form
    3,540.21/5,309.09 = 1,199.66/x
  3. Step 3: Cross multiply
    3,540.21x = 5,309.09 × 1,199.66
  4. Step 4: Simplify right side
    3,540.21x = 6,369,111.48
  5. Step 5: Solve for x
    x = 6,369,111.48/3,540.21
  6. Step 6: Final answer
    x = 1,799.08

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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.