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Finding the Fourth Proportional to 7,003.62, 9,664.95 and 3,859.83

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Solution

The fourth proportional to 7,003.62, 9,664.95 and 3,859.83 is: 5,326.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,003.62 : 9,664.95 = 3,859.83 : x
  2. Step 2: Convert to fraction form
    7,003.62/9,664.95 = 3,859.83/x
  3. Step 3: Cross multiply
    7,003.62x = 9,664.95 × 3,859.83
  4. Step 4: Simplify right side
    7,003.62x = 37,305,063.96
  5. Step 5: Solve for x
    x = 37,305,063.96/7,003.62
  6. Step 6: Final answer
    x = 5,326.54

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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.