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Finding the Fourth Proportional to 2,640.56, 3,956.09 and 2,484.41

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Solution

The fourth proportional to 2,640.56, 3,956.09 and 2,484.41 is: 3,722.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640.56 : 3,956.09 = 2,484.41 : x
  2. Step 2: Convert to fraction form
    2,640.56/3,956.09 = 2,484.41/x
  3. Step 3: Cross multiply
    2,640.56x = 3,956.09 × 2,484.41
  4. Step 4: Simplify right side
    2,640.56x = 9,828,517.35
  5. Step 5: Solve for x
    x = 9,828,517.35/2,640.56
  6. Step 6: Final answer
    x = 3,722.14

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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.