Home / 3,413.52-5,120.28-1,105.02

Finding the Fourth Proportional to 3,413.52, 5,120.28 and 1,105.02

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Solution

The fourth proportional to 3,413.52, 5,120.28 and 1,105.02 is: 1,657.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,413.52 : 5,120.28 = 1,105.02 : x
  2. Step 2: Convert to fraction form
    3,413.52/5,120.28 = 1,105.02/x
  3. Step 3: Cross multiply
    3,413.52x = 5,120.28 × 1,105.02
  4. Step 4: Simplify right side
    3,413.52x = 5,658,011.81
  5. Step 5: Solve for x
    x = 5,658,011.81/3,413.52
  6. Step 6: Final answer
    x = 1,657.53

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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.