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Finding the Fourth Proportional to 2,658.68, 3,668.87 and 1,479.73

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Solution

The fourth proportional to 2,658.68, 3,668.87 and 1,479.73 is: 2,041.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,658.68 : 3,668.87 = 1,479.73 : x
  2. Step 2: Convert to fraction form
    2,658.68/3,668.87 = 1,479.73/x
  3. Step 3: Cross multiply
    2,658.68x = 3,668.87 × 1,479.73
  4. Step 4: Simplify right side
    2,658.68x = 5,428,918.66
  5. Step 5: Solve for x
    x = 5,428,918.66/2,658.68
  6. Step 6: Final answer
    x = 2,041.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.