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Finding the Fourth Proportional to 5,731.26, 8,585.91 and 3,879.18

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Solution

The fourth proportional to 5,731.26, 8,585.91 and 3,879.18 is: 5,811.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,731.26 : 8,585.91 = 3,879.18 : x
  2. Step 2: Convert to fraction form
    5,731.26/8,585.91 = 3,879.18/x
  3. Step 3: Cross multiply
    5,731.26x = 8,585.91 × 3,879.18
  4. Step 4: Simplify right side
    5,731.26x = 33,306,290.35
  5. Step 5: Solve for x
    x = 33,306,290.35/5,731.26
  6. Step 6: Final answer
    x = 5,811.34

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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.