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Finding the Fourth Proportional to 3,346.92, 5,020.92 and 1,615.68

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Solution

The fourth proportional to 3,346.92, 5,020.92 and 1,615.68 is: 2,423.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,346.92 : 5,020.92 = 1,615.68 : x
  2. Step 2: Convert to fraction form
    3,346.92/5,020.92 = 1,615.68/x
  3. Step 3: Cross multiply
    3,346.92x = 5,020.92 × 1,615.68
  4. Step 4: Simplify right side
    3,346.92x = 8,112,200.03
  5. Step 5: Solve for x
    x = 8,112,200.03/3,346.92
  6. Step 6: Final answer
    x = 2,423.78

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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.