Home / 6,181.21-8,531.66-3,821.97

Finding the Fourth Proportional to 6,181.21, 8,531.66 and 3,821.97

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Solution

The fourth proportional to 6,181.21, 8,531.66 and 3,821.97 is: 5,275.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,181.21 : 8,531.66 = 3,821.97 : x
  2. Step 2: Convert to fraction form
    6,181.21/8,531.66 = 3,821.97/x
  3. Step 3: Cross multiply
    6,181.21x = 8,531.66 × 3,821.97
  4. Step 4: Simplify right side
    6,181.21x = 32,607,748.57
  5. Step 5: Solve for x
    x = 32,607,748.57/6,181.21
  6. Step 6: Final answer
    x = 5,275.30

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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.