Home / 5,099.78-7,650.36-2,137.76

Finding the Fourth Proportional to 5,099.78, 7,650.36 and 2,137.76

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Solution

The fourth proportional to 5,099.78, 7,650.36 and 2,137.76 is: 3,206.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,099.78 : 7,650.36 = 2,137.76 : x
  2. Step 2: Convert to fraction form
    5,099.78/7,650.36 = 2,137.76/x
  3. Step 3: Cross multiply
    5,099.78x = 7,650.36 × 2,137.76
  4. Step 4: Simplify right side
    5,099.78x = 16,354,644.70
  5. Step 5: Solve for x
    x = 16,354,644.70/5,099.78
  6. Step 6: Final answer
    x = 3,206.93

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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.