Home / 2,149.18-3,223.14-851.56

Finding the Fourth Proportional to 2,149.18, 3,223.14 and 851.56

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Solution

The fourth proportional to 2,149.18, 3,223.14 and 851.56 is: 1,277.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,149.18 : 3,223.14 = 851.56 : x
  2. Step 2: Convert to fraction form
    2,149.18/3,223.14 = 851.56/x
  3. Step 3: Cross multiply
    2,149.18x = 3,223.14 × 851.56
  4. Step 4: Simplify right side
    2,149.18x = 2,744,697.10
  5. Step 5: Solve for x
    x = 2,744,697.10/2,149.18
  6. Step 6: Final answer
    x = 1,277.09

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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.