Home / 6,116.78-9,175.21-2,221.09

Finding the Fourth Proportional to 6,116.78, 9,175.21 and 2,221.09

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Solution

The fourth proportional to 6,116.78, 9,175.21 and 2,221.09 is: 3,331.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,116.78 : 9,175.21 = 2,221.09 : x
  2. Step 2: Convert to fraction form
    6,116.78/9,175.21 = 2,221.09/x
  3. Step 3: Cross multiply
    6,116.78x = 9,175.21 × 2,221.09
  4. Step 4: Simplify right side
    6,116.78x = 20,378,938.69
  5. Step 5: Solve for x
    x = 20,378,938.69/6,116.78
  6. Step 6: Final answer
    x = 3,331.64

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1.5x scale

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.