Home / 7,282.11-10,049.31-4,138.30

Finding the Fourth Proportional to 7,282.11, 10,049.31 and 4,138.30

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Solution

The fourth proportional to 7,282.11, 10,049.31 and 4,138.30 is: 5,710.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,282.11 : 10,049.31 = 4,138.30 : x
  2. Step 2: Convert to fraction form
    7,282.11/10,049.31 = 4,138.30/x
  3. Step 3: Cross multiply
    7,282.11x = 10,049.31 × 4,138.30
  4. Step 4: Simplify right side
    7,282.11x = 41,587,059.57
  5. Step 5: Solve for x
    x = 41,587,059.57/7,282.11
  6. Step 6: Final answer
    x = 5,710.85

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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.