Home / 5,217.12-7,827.85-2,099.34

Finding the Fourth Proportional to 5,217.12, 7,827.85 and 2,099.34

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Solution

The fourth proportional to 5,217.12, 7,827.85 and 2,099.34 is: 3,149.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.12 : 7,827.85 = 2,099.34 : x
  2. Step 2: Convert to fraction form
    5,217.12/7,827.85 = 2,099.34/x
  3. Step 3: Cross multiply
    5,217.12x = 7,827.85 × 2,099.34
  4. Step 4: Simplify right side
    5,217.12x = 16,433,318.62
  5. Step 5: Solve for x
    x = 16,433,318.62/5,217.12
  6. Step 6: Final answer
    x = 3,149.88

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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.