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Finding the Fourth Proportional to 5,890.62, 8,129.11 and 3,238.11

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Solution

The fourth proportional to 5,890.62, 8,129.11 and 3,238.11 is: 4,468.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,890.62 : 8,129.11 = 3,238.11 : x
  2. Step 2: Convert to fraction form
    5,890.62/8,129.11 = 3,238.11/x
  3. Step 3: Cross multiply
    5,890.62x = 8,129.11 × 3,238.11
  4. Step 4: Simplify right side
    5,890.62x = 26,322,911.74
  5. Step 5: Solve for x
    x = 26,322,911.74/5,890.62
  6. Step 6: Final answer
    x = 4,468.61

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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.