Home / 2,791.16-4,186.75-942.28

Finding the Fourth Proportional to 2,791.16, 4,186.75 and 942.28

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Solution

The fourth proportional to 2,791.16, 4,186.75 and 942.28 is: 1,413.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.16 : 4,186.75 = 942.28 : x
  2. Step 2: Convert to fraction form
    2,791.16/4,186.75 = 942.28/x
  3. Step 3: Cross multiply
    2,791.16x = 4,186.75 × 942.28
  4. Step 4: Simplify right side
    2,791.16x = 3,945,104.61
  5. Step 5: Solve for x
    x = 3,945,104.61/2,791.16
  6. Step 6: Final answer
    x = 1,413.43

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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.