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Finding the Fourth Proportional to 3,753.69, 5,179.64 and 2,074.87

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Solution

The fourth proportional to 3,753.69, 5,179.64 and 2,074.87 is: 2,863.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,753.69 : 5,179.64 = 2,074.87 : x
  2. Step 2: Convert to fraction form
    3,753.69/5,179.64 = 2,074.87/x
  3. Step 3: Cross multiply
    3,753.69x = 5,179.64 × 2,074.87
  4. Step 4: Simplify right side
    3,753.69x = 10,747,066.70
  5. Step 5: Solve for x
    x = 10,747,066.70/3,753.69
  6. Step 6: Final answer
    x = 2,863.07

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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.