Home / 3,486.21-5,227.16-1,636.53

Finding the Fourth Proportional to 3,486.21, 5,227.16 and 1,636.53

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Solution

The fourth proportional to 3,486.21, 5,227.16 and 1,636.53 is: 2,453.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.21 : 5,227.16 = 1,636.53 : x
  2. Step 2: Convert to fraction form
    3,486.21/5,227.16 = 1,636.53/x
  3. Step 3: Cross multiply
    3,486.21x = 5,227.16 × 1,636.53
  4. Step 4: Simplify right side
    3,486.21x = 8,554,395.97
  5. Step 5: Solve for x
    x = 8,554,395.97/3,486.21
  6. Step 6: Final answer
    x = 2,453.78

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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.