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Finding the Fourth Proportional to 4,490.86, 6,751.49 and 3,619.47

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Solution

The fourth proportional to 4,490.86, 6,751.49 and 3,619.47 is: 5,441.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,490.86 : 6,751.49 = 3,619.47 : x
  2. Step 2: Convert to fraction form
    4,490.86/6,751.49 = 3,619.47/x
  3. Step 3: Cross multiply
    4,490.86x = 6,751.49 × 3,619.47
  4. Step 4: Simplify right side
    4,490.86x = 24,436,797.41
  5. Step 5: Solve for x
    x = 24,436,797.41/4,490.86
  6. Step 6: Final answer
    x = 5,441.46

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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.