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Finding the Fourth Proportional to 3,894.73, 5,839.85 and 2,663.63

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Solution

The fourth proportional to 3,894.73, 5,839.85 and 2,663.63 is: 3,993.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,894.73 : 5,839.85 = 2,663.63 : x
  2. Step 2: Convert to fraction form
    3,894.73/5,839.85 = 2,663.63/x
  3. Step 3: Cross multiply
    3,894.73x = 5,839.85 × 2,663.63
  4. Step 4: Simplify right side
    3,894.73x = 15,555,199.66
  5. Step 5: Solve for x
    x = 15,555,199.66/3,894.73
  6. Step 6: Final answer
    x = 3,993.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.