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Finding the Fourth Proportional to 3,048, 4,206.24 and 1,806.72

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Solution

The fourth proportional to 3,048, 4,206.24 and 1,806.72 is: 2,493.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,048 : 4,206.24 = 1,806.72 : x
  2. Step 2: Convert to fraction form
    3,048/4,206.24 = 1,806.72/x
  3. Step 3: Cross multiply
    3,048x = 4,206.24 × 1,806.72
  4. Step 4: Simplify right side
    3,048x = 7,599,497.93
  5. Step 5: Solve for x
    x = 7,599,497.93/3,048
  6. Step 6: Final answer
    x = 2,493.27

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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.