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Finding the Fourth Proportional to 5,081.68, 7,621.88 and 1,793.84

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Solution

The fourth proportional to 5,081.68, 7,621.88 and 1,793.84 is: 2,690.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.68 : 7,621.88 = 1,793.84 : x
  2. Step 2: Convert to fraction form
    5,081.68/7,621.88 = 1,793.84/x
  3. Step 3: Cross multiply
    5,081.68x = 7,621.88 × 1,793.84
  4. Step 4: Simplify right side
    5,081.68x = 13,672,433.22
  5. Step 5: Solve for x
    x = 13,672,433.22/5,081.68
  6. Step 6: Final answer
    x = 2,690.53

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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.