Home / 3,208.86-4,812.78-1,975.62

Finding the Fourth Proportional to 3,208.86, 4,812.78 and 1,975.62

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Solution

The fourth proportional to 3,208.86, 4,812.78 and 1,975.62 is: 2,963.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.86 : 4,812.78 = 1,975.62 : x
  2. Step 2: Convert to fraction form
    3,208.86/4,812.78 = 1,975.62/x
  3. Step 3: Cross multiply
    3,208.86x = 4,812.78 × 1,975.62
  4. Step 4: Simplify right side
    3,208.86x = 9,508,224.42
  5. Step 5: Solve for x
    x = 9,508,224.42/3,208.86
  6. Step 6: Final answer
    x = 2,963.12

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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.