Home / 7,431.28-11,148.54-2,236.75

Finding the Fourth Proportional to 7,431.28, 11,148.54 and 2,236.75

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Solution

The fourth proportional to 7,431.28, 11,148.54 and 2,236.75 is: 3,355.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.28 : 11,148.54 = 2,236.75 : x
  2. Step 2: Convert to fraction form
    7,431.28/11,148.54 = 2,236.75/x
  3. Step 3: Cross multiply
    7,431.28x = 11,148.54 × 2,236.75
  4. Step 4: Simplify right side
    7,431.28x = 24,936,496.85
  5. Step 5: Solve for x
    x = 24,936,496.85/7,431.28
  6. Step 6: Final answer
    x = 3,355.61

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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.