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Finding the Fourth Proportional to 5,581.87, 8,367.33 and 3,118.77

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Solution

The fourth proportional to 5,581.87, 8,367.33 and 3,118.77 is: 4,675.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,581.87 : 8,367.33 = 3,118.77 : x
  2. Step 2: Convert to fraction form
    5,581.87/8,367.33 = 3,118.77/x
  3. Step 3: Cross multiply
    5,581.87x = 8,367.33 × 3,118.77
  4. Step 4: Simplify right side
    5,581.87x = 26,095,777.78
  5. Step 5: Solve for x
    x = 26,095,777.78/5,581.87
  6. Step 6: Final answer
    x = 4,675.10

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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.