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Finding the Fourth Proportional to 3,771.96, 5,659.83 and 1,580.64

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Solution

The fourth proportional to 3,771.96, 5,659.83 and 1,580.64 is: 2,371.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,771.96 : 5,659.83 = 1,580.64 : x
  2. Step 2: Convert to fraction form
    3,771.96/5,659.83 = 1,580.64/x
  3. Step 3: Cross multiply
    3,771.96x = 5,659.83 × 1,580.64
  4. Step 4: Simplify right side
    3,771.96x = 8,946,153.69
  5. Step 5: Solve for x
    x = 8,946,153.69/3,771.96
  6. Step 6: Final answer
    x = 2,371.75

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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.