Home / 6,105.85-9,152.38-2,821.09

Finding the Fourth Proportional to 6,105.85, 9,152.38 and 2,821.09

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Solution

The fourth proportional to 6,105.85, 9,152.38 and 2,821.09 is: 4,228.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,105.85 : 9,152.38 = 2,821.09 : x
  2. Step 2: Convert to fraction form
    6,105.85/9,152.38 = 2,821.09/x
  3. Step 3: Cross multiply
    6,105.85x = 9,152.38 × 2,821.09
  4. Step 4: Simplify right side
    6,105.85x = 25,819,687.69
  5. Step 5: Solve for x
    x = 25,819,687.69/6,105.85
  6. Step 6: Final answer
    x = 4,228.68

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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.