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Finding the Fourth Proportional to 6,612.63, 9,905.99 and 2,906.07

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Solution

The fourth proportional to 6,612.63, 9,905.99 and 2,906.07 is: 4,353.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,612.63 : 9,905.99 = 2,906.07 : x
  2. Step 2: Convert to fraction form
    6,612.63/9,905.99 = 2,906.07/x
  3. Step 3: Cross multiply
    6,612.63x = 9,905.99 × 2,906.07
  4. Step 4: Simplify right side
    6,612.63x = 28,787,485.83
  5. Step 5: Solve for x
    x = 28,787,485.83/6,612.63
  6. Step 6: Final answer
    x = 4,353.41

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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.