Home / 7,450.78-11,177.39-2,255.44

Finding the Fourth Proportional to 7,450.78, 11,177.39 and 2,255.44

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Solution

The fourth proportional to 7,450.78, 11,177.39 and 2,255.44 is: 3,383.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,450.78 : 11,177.39 = 2,255.44 : x
  2. Step 2: Convert to fraction form
    7,450.78/11,177.39 = 2,255.44/x
  3. Step 3: Cross multiply
    7,450.78x = 11,177.39 × 2,255.44
  4. Step 4: Simplify right side
    7,450.78x = 25,209,921.22
  5. Step 5: Solve for x
    x = 25,209,921.22/7,450.78
  6. Step 6: Final answer
    x = 3,383.53

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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.