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Finding the Fourth Proportional to 2,494.80, 3,743.64 and 2,065.68

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Solution

The fourth proportional to 2,494.80, 3,743.64 and 2,065.68 is: 3,099.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,494.80 : 3,743.64 = 2,065.68 : x
  2. Step 2: Convert to fraction form
    2,494.80/3,743.64 = 2,065.68/x
  3. Step 3: Cross multiply
    2,494.80x = 3,743.64 × 2,065.68
  4. Step 4: Simplify right side
    2,494.80x = 7,733,162.28
  5. Step 5: Solve for x
    x = 7,733,162.28/2,494.80
  6. Step 6: Final answer
    x = 3,099.71

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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.