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Finding the Fourth Proportional to 5,879, 8,112.88 and 3,226.40

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Solution

The fourth proportional to 5,879, 8,112.88 and 3,226.40 is: 4,452.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,879 : 8,112.88 = 3,226.40 : x
  2. Step 2: Convert to fraction form
    5,879/8,112.88 = 3,226.40/x
  3. Step 3: Cross multiply
    5,879x = 8,112.88 × 3,226.40
  4. Step 4: Simplify right side
    5,879x = 26,175,396.03
  5. Step 5: Solve for x
    x = 26,175,396.03/5,879
  6. Step 6: Final answer
    x = 4,452.36

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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.