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Finding the Fourth Proportional to 8,411.83, 12,619.74 and 2,568.07

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Solution

The fourth proportional to 8,411.83, 12,619.74 and 2,568.07 is: 3,852.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,411.83 : 12,619.74 = 2,568.07 : x
  2. Step 2: Convert to fraction form
    8,411.83/12,619.74 = 2,568.07/x
  3. Step 3: Cross multiply
    8,411.83x = 12,619.74 × 2,568.07
  4. Step 4: Simplify right side
    8,411.83x = 32,408,375.70
  5. Step 5: Solve for x
    x = 32,408,375.70/8,411.83
  6. Step 6: Final answer
    x = 3,852.71

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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.