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Finding the Fourth Proportional to 3,802.86, 5,689.29 and 2,881.08

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Solution

The fourth proportional to 3,802.86, 5,689.29 and 2,881.08 is: 4,310.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,802.86 : 5,689.29 = 2,881.08 : x
  2. Step 2: Convert to fraction form
    3,802.86/5,689.29 = 2,881.08/x
  3. Step 3: Cross multiply
    3,802.86x = 5,689.29 × 2,881.08
  4. Step 4: Simplify right side
    3,802.86x = 16,391,299.63
  5. Step 5: Solve for x
    x = 16,391,299.63/3,802.86
  6. Step 6: Final answer
    x = 4,310.26

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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.