Home / 5,891.21-8,129.79-3,238.59

Finding the Fourth Proportional to 5,891.21, 8,129.79 and 3,238.59

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Solution

The fourth proportional to 5,891.21, 8,129.79 and 3,238.59 is: 4,469.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,891.21 : 8,129.79 = 3,238.59 : x
  2. Step 2: Convert to fraction form
    5,891.21/8,129.79 = 3,238.59/x
  3. Step 3: Cross multiply
    5,891.21x = 8,129.79 × 3,238.59
  4. Step 4: Simplify right side
    5,891.21x = 26,329,056.60
  5. Step 5: Solve for x
    x = 26,329,056.60/5,891.21
  6. Step 6: Final answer
    x = 4,469.21

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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.