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Finding the Fourth Proportional to 1,601.90, 2,401.39 and 676.96

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Solution

The fourth proportional to 1,601.90, 2,401.39 and 676.96 is: 1,014.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,601.90 : 2,401.39 = 676.96 : x
  2. Step 2: Convert to fraction form
    1,601.90/2,401.39 = 676.96/x
  3. Step 3: Cross multiply
    1,601.90x = 2,401.39 × 676.96
  4. Step 4: Simplify right side
    1,601.90x = 1,625,637.91
  5. Step 5: Solve for x
    x = 1,625,637.91/1,601.90
  6. Step 6: Final answer
    x = 1,014.82

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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.