Home / 5,515.53-7,613.21-3,531.43

Finding the Fourth Proportional to 5,515.53, 7,613.21 and 3,531.43

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Solution

The fourth proportional to 5,515.53, 7,613.21 and 3,531.43 is: 4,874.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.53 : 7,613.21 = 3,531.43 : x
  2. Step 2: Convert to fraction form
    5,515.53/7,613.21 = 3,531.43/x
  3. Step 3: Cross multiply
    5,515.53x = 7,613.21 × 3,531.43
  4. Step 4: Simplify right side
    5,515.53x = 26,885,500.53
  5. Step 5: Solve for x
    x = 26,885,500.53/5,515.53
  6. Step 6: Final answer
    x = 4,874.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.