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Finding the Fourth Proportional to 4,000.05, 5,965.08 and 3,781.69

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Solution

The fourth proportional to 4,000.05, 5,965.08 and 3,781.69 is: 5,639.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,000.05 : 5,965.08 = 3,781.69 : x
  2. Step 2: Convert to fraction form
    4,000.05/5,965.08 = 3,781.69/x
  3. Step 3: Cross multiply
    4,000.05x = 5,965.08 × 3,781.69
  4. Step 4: Simplify right side
    4,000.05x = 22,558,054.29
  5. Step 5: Solve for x
    x = 22,558,054.29/4,000.05
  6. Step 6: Final answer
    x = 5,639.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.