Home / 7,491.28-11,236.92-3,107.56

Finding the Fourth Proportional to 7,491.28, 11,236.92 and 3,107.56

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Solution

The fourth proportional to 7,491.28, 11,236.92 and 3,107.56 is: 4,661.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,491.28 : 11,236.92 = 3,107.56 : x
  2. Step 2: Convert to fraction form
    7,491.28/11,236.92 = 3,107.56/x
  3. Step 3: Cross multiply
    7,491.28x = 11,236.92 × 3,107.56
  4. Step 4: Simplify right side
    7,491.28x = 34,919,403.12
  5. Step 5: Solve for x
    x = 34,919,403.12/7,491.28
  6. Step 6: Final answer
    x = 4,661.34

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1.5x scale

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.