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Finding the Fourth Proportional to 8,872.84, 13,309.97 and 2,949.51

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Solution

The fourth proportional to 8,872.84, 13,309.97 and 2,949.51 is: 4,424.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,872.84 : 13,309.97 = 2,949.51 : x
  2. Step 2: Convert to fraction form
    8,872.84/13,309.97 = 2,949.51/x
  3. Step 3: Cross multiply
    8,872.84x = 13,309.97 × 2,949.51
  4. Step 4: Simplify right side
    8,872.84x = 39,257,941.37
  5. Step 5: Solve for x
    x = 39,257,941.37/8,872.84
  6. Step 6: Final answer
    x = 4,424.51

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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.