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Finding the Fourth Proportional to 3,568.78, 4,924.81 and 1,975.49

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Solution

The fourth proportional to 3,568.78, 4,924.81 and 1,975.49 is: 2,726.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,568.78 : 4,924.81 = 1,975.49 : x
  2. Step 2: Convert to fraction form
    3,568.78/4,924.81 = 1,975.49/x
  3. Step 3: Cross multiply
    3,568.78x = 4,924.81 × 1,975.49
  4. Step 4: Simplify right side
    3,568.78x = 9,728,912.91
  5. Step 5: Solve for x
    x = 9,728,912.91/3,568.78
  6. Step 6: Final answer
    x = 2,726.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.