Home / 4,072.96-6,112.68-1,608.40

Finding the Fourth Proportional to 4,072.96, 6,112.68 and 1,608.40

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Solution

The fourth proportional to 4,072.96, 6,112.68 and 1,608.40 is: 2,413.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,072.96 : 6,112.68 = 1,608.40 : x
  2. Step 2: Convert to fraction form
    4,072.96/6,112.68 = 1,608.40/x
  3. Step 3: Cross multiply
    4,072.96x = 6,112.68 × 1,608.40
  4. Step 4: Simplify right side
    4,072.96x = 9,831,634.51
  5. Step 5: Solve for x
    x = 9,831,634.51/4,072.96
  6. Step 6: Final answer
    x = 2,413.88

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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.