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Finding the Fourth Proportional to 2,668.94, 4,003.61 and 1,025.49

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Solution

The fourth proportional to 2,668.94, 4,003.61 and 1,025.49 is: 1,538.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,668.94 : 4,003.61 = 1,025.49 : x
  2. Step 2: Convert to fraction form
    2,668.94/4,003.61 = 1,025.49/x
  3. Step 3: Cross multiply
    2,668.94x = 4,003.61 × 1,025.49
  4. Step 4: Simplify right side
    2,668.94x = 4,105,664.58
  5. Step 5: Solve for x
    x = 4,105,664.58/2,668.94
  6. Step 6: Final answer
    x = 1,538.31

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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.