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Finding the Fourth Proportional to 3,771.36, 5,657.54 and 1,579.57

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Solution

The fourth proportional to 3,771.36, 5,657.54 and 1,579.57 is: 2,369.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,771.36 : 5,657.54 = 1,579.57 : x
  2. Step 2: Convert to fraction form
    3,771.36/5,657.54 = 1,579.57/x
  3. Step 3: Cross multiply
    3,771.36x = 5,657.54 × 1,579.57
  4. Step 4: Simplify right side
    3,771.36x = 8,936,480.46
  5. Step 5: Solve for x
    x = 8,936,480.46/3,771.36
  6. Step 6: Final answer
    x = 2,369.56

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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.