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Finding the Fourth Proportional to 4,183, 6,274.50 and 1,447

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Solution

The fourth proportional to 4,183, 6,274.50 and 1,447 is: 2,170.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,183 : 6,274.50 = 1,447 : x
  2. Step 2: Convert to fraction form
    4,183/6,274.50 = 1,447/x
  3. Step 3: Cross multiply
    4,183x = 6,274.50 × 1,447
  4. Step 4: Simplify right side
    4,183x = 9,079,201.50
  5. Step 5: Solve for x
    x = 9,079,201.50/4,183
  6. Step 6: Final answer
    x = 2,170.50

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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.