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Finding the Fourth Proportional to 2,722, 4,083.64 and 898

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Solution

The fourth proportional to 2,722, 4,083.64 and 898 is: 1,347.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,722 : 4,083.64 = 898 : x
  2. Step 2: Convert to fraction form
    2,722/4,083.64 = 898/x
  3. Step 3: Cross multiply
    2,722x = 4,083.64 × 898
  4. Step 4: Simplify right side
    2,722x = 3,667,108.72
  5. Step 5: Solve for x
    x = 3,667,108.72/2,722
  6. Step 6: Final answer
    x = 1,347.21

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.