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Finding the Fourth Proportional to 3,650.85, 5,039.85 and 2,391.96

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Solution

The fourth proportional to 3,650.85, 5,039.85 and 2,391.96 is: 3,302.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,650.85 : 5,039.85 = 2,391.96 : x
  2. Step 2: Convert to fraction form
    3,650.85/5,039.85 = 2,391.96/x
  3. Step 3: Cross multiply
    3,650.85x = 5,039.85 × 2,391.96
  4. Step 4: Simplify right side
    3,650.85x = 12,055,119.61
  5. Step 5: Solve for x
    x = 12,055,119.61/3,650.85
  6. Step 6: Final answer
    x = 3,302.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.