Home / 7,020.21-9,687.92-3,833.54

Finding the Fourth Proportional to 7,020.21, 9,687.92 and 3,833.54

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Solution

The fourth proportional to 7,020.21, 9,687.92 and 3,833.54 is: 5,290.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020.21 : 9,687.92 = 3,833.54 : x
  2. Step 2: Convert to fraction form
    7,020.21/9,687.92 = 3,833.54/x
  3. Step 3: Cross multiply
    7,020.21x = 9,687.92 × 3,833.54
  4. Step 4: Simplify right side
    7,020.21x = 37,138,997.56
  5. Step 5: Solve for x
    x = 37,138,997.56/7,020.21
  6. Step 6: Final answer
    x = 5,290.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.