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Finding the Fourth Proportional to 3,898.89, 5,859.54 and 3,244.86

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Solution

The fourth proportional to 3,898.89, 5,859.54 and 3,244.86 is: 4,876.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,898.89 : 5,859.54 = 3,244.86 : x
  2. Step 2: Convert to fraction form
    3,898.89/5,859.54 = 3,244.86/x
  3. Step 3: Cross multiply
    3,898.89x = 5,859.54 × 3,244.86
  4. Step 4: Simplify right side
    3,898.89x = 19,013,386.96
  5. Step 5: Solve for x
    x = 19,013,386.96/3,898.89
  6. Step 6: Final answer
    x = 4,876.62

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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.