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Finding the Fourth Proportional to 1,679.92, 2,522.04 and 1,425.04

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Solution

The fourth proportional to 1,679.92, 2,522.04 and 1,425.04 is: 2,139.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679.92 : 2,522.04 = 1,425.04 : x
  2. Step 2: Convert to fraction form
    1,679.92/2,522.04 = 1,425.04/x
  3. Step 3: Cross multiply
    1,679.92x = 2,522.04 × 1,425.04
  4. Step 4: Simplify right side
    1,679.92x = 3,594,007.88
  5. Step 5: Solve for x
    x = 3,594,007.88/1,679.92
  6. Step 6: Final answer
    x = 2,139.39

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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.