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Finding the Fourth Proportional to 4,179.92, 6,266.04 and 1,442

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Solution

The fourth proportional to 4,179.92, 6,266.04 and 1,442 is: 2,161.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,179.92 : 6,266.04 = 1,442 : x
  2. Step 2: Convert to fraction form
    4,179.92/6,266.04 = 1,442/x
  3. Step 3: Cross multiply
    4,179.92x = 6,266.04 × 1,442
  4. Step 4: Simplify right side
    4,179.92x = 9,035,629.68
  5. Step 5: Solve for x
    x = 9,035,629.68/4,179.92
  6. Step 6: Final answer
    x = 2,161.68

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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.