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Finding the Fourth Proportional to 3,771.85, 5,659.98 and 1,580.41

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Solution

The fourth proportional to 3,771.85, 5,659.98 and 1,580.41 is: 2,371.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,771.85 : 5,659.98 = 1,580.41 : x
  2. Step 2: Convert to fraction form
    3,771.85/5,659.98 = 1,580.41/x
  3. Step 3: Cross multiply
    3,771.85x = 5,659.98 × 1,580.41
  4. Step 4: Simplify right side
    3,771.85x = 8,945,088.99
  5. Step 5: Solve for x
    x = 8,945,088.99/3,771.85
  6. Step 6: Final answer
    x = 2,371.54

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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.