Home / 3,613.21-5,419.69-1,531.88

Finding the Fourth Proportional to 3,613.21, 5,419.69 and 1,531.88

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Solution

The fourth proportional to 3,613.21, 5,419.69 and 1,531.88 is: 2,297.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.21 : 5,419.69 = 1,531.88 : x
  2. Step 2: Convert to fraction form
    3,613.21/5,419.69 = 1,531.88/x
  3. Step 3: Cross multiply
    3,613.21x = 5,419.69 × 1,531.88
  4. Step 4: Simplify right side
    3,613.21x = 8,302,287.62
  5. Step 5: Solve for x
    x = 8,302,287.62/3,613.21
  6. Step 6: Final answer
    x = 2,297.76

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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.