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Finding the Fourth Proportional to 3,422.87, 4,723.57 and 2,006.28

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Solution

The fourth proportional to 3,422.87, 4,723.57 and 2,006.28 is: 2,768.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.87 : 4,723.57 = 2,006.28 : x
  2. Step 2: Convert to fraction form
    3,422.87/4,723.57 = 2,006.28/x
  3. Step 3: Cross multiply
    3,422.87x = 4,723.57 × 2,006.28
  4. Step 4: Simplify right side
    3,422.87x = 9,476,781.29
  5. Step 5: Solve for x
    x = 9,476,781.29/3,422.87
  6. Step 6: Final answer
    x = 2,768.66

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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.