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Finding the Fourth Proportional to 5,879, 8,818.86 and 1,775

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Solution

The fourth proportional to 5,879, 8,818.86 and 1,775 is: 2,662.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,879 : 8,818.86 = 1,775 : x
  2. Step 2: Convert to fraction form
    5,879/8,818.86 = 1,775/x
  3. Step 3: Cross multiply
    5,879x = 8,818.86 × 1,775
  4. Step 4: Simplify right side
    5,879x = 15,653,476.50
  5. Step 5: Solve for x
    x = 15,653,476.50/5,879
  6. Step 6: Final answer
    x = 2,662.61

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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.