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Finding the Fourth Proportional to 3,755.59, 5,621.57 and 2,578.70

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Solution

The fourth proportional to 3,755.59, 5,621.57 and 2,578.70 is: 3,859.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,755.59 : 5,621.57 = 2,578.70 : x
  2. Step 2: Convert to fraction form
    3,755.59/5,621.57 = 2,578.70/x
  3. Step 3: Cross multiply
    3,755.59x = 5,621.57 × 2,578.70
  4. Step 4: Simplify right side
    3,755.59x = 14,496,356.61
  5. Step 5: Solve for x
    x = 14,496,356.61/3,755.59
  6. Step 6: Final answer
    x = 3,859.94

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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.