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Finding the Fourth Proportional to 2,407.68, 3,606.48 and 2,115.54

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Solution

The fourth proportional to 2,407.68, 3,606.48 and 2,115.54 is: 3,168.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,407.68 : 3,606.48 = 2,115.54 : x
  2. Step 2: Convert to fraction form
    2,407.68/3,606.48 = 2,115.54/x
  3. Step 3: Cross multiply
    2,407.68x = 3,606.48 × 2,115.54
  4. Step 4: Simplify right side
    2,407.68x = 7,629,652.70
  5. Step 5: Solve for x
    x = 7,629,652.70/2,407.68
  6. Step 6: Final answer
    x = 3,168.88

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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.