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Finding the Fourth Proportional to 2,938, 4,408.08 and 886

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Solution

The fourth proportional to 2,938, 4,408.08 and 886 is: 1,329.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938 : 4,408.08 = 886 : x
  2. Step 2: Convert to fraction form
    2,938/4,408.08 = 886/x
  3. Step 3: Cross multiply
    2,938x = 4,408.08 × 886
  4. Step 4: Simplify right side
    2,938x = 3,905,558.88
  5. Step 5: Solve for x
    x = 3,905,558.88/2,938
  6. Step 6: Final answer
    x = 1,329.33

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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.