Home / 4,099.68-6,143.76-2,147.94

Finding the Fourth Proportional to 4,099.68, 6,143.76 and 2,147.94

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Solution

The fourth proportional to 4,099.68, 6,143.76 and 2,147.94 is: 3,218.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,099.68 : 6,143.76 = 2,147.94 : x
  2. Step 2: Convert to fraction form
    4,099.68/6,143.76 = 2,147.94/x
  3. Step 3: Cross multiply
    4,099.68x = 6,143.76 × 2,147.94
  4. Step 4: Simplify right side
    4,099.68x = 13,196,427.85
  5. Step 5: Solve for x
    x = 13,196,427.85/4,099.68
  6. Step 6: Final answer
    x = 3,218.89

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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.