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Finding the Fourth Proportional to 3,608.88, 5,413.48 and 1,011.76

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Solution

The fourth proportional to 3,608.88, 5,413.48 and 1,011.76 is: 1,517.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.88 : 5,413.48 = 1,011.76 : x
  2. Step 2: Convert to fraction form
    3,608.88/5,413.48 = 1,011.76/x
  3. Step 3: Cross multiply
    3,608.88x = 5,413.48 × 1,011.76
  4. Step 4: Simplify right side
    3,608.88x = 5,477,142.52
  5. Step 5: Solve for x
    x = 5,477,142.52/3,608.88
  6. Step 6: Final answer
    x = 1,517.68

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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.