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Finding the Fourth Proportional to 8,440.48, 12,659.76 and 2,284

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Solution

The fourth proportional to 8,440.48, 12,659.76 and 2,284 is: 3,425.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,440.48 : 12,659.76 = 2,284 : x
  2. Step 2: Convert to fraction form
    8,440.48/12,659.76 = 2,284/x
  3. Step 3: Cross multiply
    8,440.48x = 12,659.76 × 2,284
  4. Step 4: Simplify right side
    8,440.48x = 28,914,891.84
  5. Step 5: Solve for x
    x = 28,914,891.84/8,440.48
  6. Step 6: Final answer
    x = 3,425.74

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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.