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Finding the Fourth Proportional to 4,407.82, 6,645.10 and 4,169.68

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Solution

The fourth proportional to 4,407.82, 6,645.10 and 4,169.68 is: 6,286.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,407.82 : 6,645.10 = 4,169.68 : x
  2. Step 2: Convert to fraction form
    4,407.82/6,645.10 = 4,169.68/x
  3. Step 3: Cross multiply
    4,407.82x = 6,645.10 × 4,169.68
  4. Step 4: Simplify right side
    4,407.82x = 27,707,940.57
  5. Step 5: Solve for x
    x = 27,707,940.57/4,407.82
  6. Step 6: Final answer
    x = 6,286.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.