Home / 5,571.78-8,356.31-1,621.97

Finding the Fourth Proportional to 5,571.78, 8,356.31 and 1,621.97

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Solution

The fourth proportional to 5,571.78, 8,356.31 and 1,621.97 is: 2,432.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,571.78 : 8,356.31 = 1,621.97 : x
  2. Step 2: Convert to fraction form
    5,571.78/8,356.31 = 1,621.97/x
  3. Step 3: Cross multiply
    5,571.78x = 8,356.31 × 1,621.97
  4. Step 4: Simplify right side
    5,571.78x = 13,553,684.13
  5. Step 5: Solve for x
    x = 13,553,684.13/5,571.78
  6. Step 6: Final answer
    x = 2,432.56

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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.