Home / 4,791.72-7,187.97-1,328.97

Finding the Fourth Proportional to 4,791.72, 7,187.97 and 1,328.97

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Solution

The fourth proportional to 4,791.72, 7,187.97 and 1,328.97 is: 1,993.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,791.72 : 7,187.97 = 1,328.97 : x
  2. Step 2: Convert to fraction form
    4,791.72/7,187.97 = 1,328.97/x
  3. Step 3: Cross multiply
    4,791.72x = 7,187.97 × 1,328.97
  4. Step 4: Simplify right side
    4,791.72x = 9,552,596.49
  5. Step 5: Solve for x
    x = 9,552,596.49/4,791.72
  6. Step 6: Final answer
    x = 1,993.56

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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.