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Finding the Fourth Proportional to 1,425.01, 2,137.74 and 451.04

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Solution

The fourth proportional to 1,425.01, 2,137.74 and 451.04 is: 676.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425.01 : 2,137.74 = 451.04 : x
  2. Step 2: Convert to fraction form
    1,425.01/2,137.74 = 451.04/x
  3. Step 3: Cross multiply
    1,425.01x = 2,137.74 × 451.04
  4. Step 4: Simplify right side
    1,425.01x = 964,195.56
  5. Step 5: Solve for x
    x = 964,195.56/1,425.01
  6. Step 6: Final answer
    x = 676.62

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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.