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Finding the Fourth Proportional to 4,540.77, 6,811.11 and 2,690.55

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Solution

The fourth proportional to 4,540.77, 6,811.11 and 2,690.55 is: 4,035.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,540.77 : 6,811.11 = 2,690.55 : x
  2. Step 2: Convert to fraction form
    4,540.77/6,811.11 = 2,690.55/x
  3. Step 3: Cross multiply
    4,540.77x = 6,811.11 × 2,690.55
  4. Step 4: Simplify right side
    4,540.77x = 18,325,631.22
  5. Step 5: Solve for x
    x = 18,325,631.22/4,540.77
  6. Step 6: Final answer
    x = 4,035.80

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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.