Home / 7,431.39-11,147.99-2,750.60

Finding the Fourth Proportional to 7,431.39, 11,147.99 and 2,750.60

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Solution

The fourth proportional to 7,431.39, 11,147.99 and 2,750.60 is: 4,126.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.39 : 11,147.99 = 2,750.60 : x
  2. Step 2: Convert to fraction form
    7,431.39/11,147.99 = 2,750.60/x
  3. Step 3: Cross multiply
    7,431.39x = 11,147.99 × 2,750.60
  4. Step 4: Simplify right side
    7,431.39x = 30,663,591.80
  5. Step 5: Solve for x
    x = 30,663,591.80/7,431.39
  6. Step 6: Final answer
    x = 4,126.23

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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.