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Finding the Fourth Proportional to 3,608.60, 5,413.47 and 1,528.62

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Solution

The fourth proportional to 3,608.60, 5,413.47 and 1,528.62 is: 2,293.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.60 : 5,413.47 = 1,528.62 : x
  2. Step 2: Convert to fraction form
    3,608.60/5,413.47 = 1,528.62/x
  3. Step 3: Cross multiply
    3,608.60x = 5,413.47 × 1,528.62
  4. Step 4: Simplify right side
    3,608.60x = 8,275,138.51
  5. Step 5: Solve for x
    x = 8,275,138.51/3,608.60
  6. Step 6: Final answer
    x = 2,293.17

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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.