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Finding the Fourth Proportional to 5,099.70, 7,630.22 and 3,020.82

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Solution

The fourth proportional to 5,099.70, 7,630.22 and 3,020.82 is: 4,519.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,099.70 : 7,630.22 = 3,020.82 : x
  2. Step 2: Convert to fraction form
    5,099.70/7,630.22 = 3,020.82/x
  3. Step 3: Cross multiply
    5,099.70x = 7,630.22 × 3,020.82
  4. Step 4: Simplify right side
    5,099.70x = 23,049,521.18
  5. Step 5: Solve for x
    x = 23,049,521.18/5,099.70
  6. Step 6: Final answer
    x = 4,519.78

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1.5x scale

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.