Home / 3,407.25-5,110.76-942.21

Finding the Fourth Proportional to 3,407.25, 5,110.76 and 942.21

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Solution

The fourth proportional to 3,407.25, 5,110.76 and 942.21 is: 1,413.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,407.25 : 5,110.76 = 942.21 : x
  2. Step 2: Convert to fraction form
    3,407.25/5,110.76 = 942.21/x
  3. Step 3: Cross multiply
    3,407.25x = 5,110.76 × 942.21
  4. Step 4: Simplify right side
    3,407.25x = 4,815,404.47
  5. Step 5: Solve for x
    x = 4,815,404.47/3,407.25
  6. Step 6: Final answer
    x = 1,413.28

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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.