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Finding the Fourth Proportional to 3,166.68, 4,370.16 and 1,908.12

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Solution

The fourth proportional to 3,166.68, 4,370.16 and 1,908.12 is: 2,633.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,166.68 : 4,370.16 = 1,908.12 : x
  2. Step 2: Convert to fraction form
    3,166.68/4,370.16 = 1,908.12/x
  3. Step 3: Cross multiply
    3,166.68x = 4,370.16 × 1,908.12
  4. Step 4: Simplify right side
    3,166.68x = 8,338,789.70
  5. Step 5: Solve for x
    x = 8,338,789.70/3,166.68
  6. Step 6: Final answer
    x = 2,633.29

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1.5x scale

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.