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Finding the Fourth Proportional to 7,408, 11,112 and 1,936

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Solution

The fourth proportional to 7,408, 11,112 and 1,936 is: 2,904

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,408 : 11,112 = 1,936 : x
  2. Step 2: Convert to fraction form
    7,408/11,112 = 1,936/x
  3. Step 3: Cross multiply
    7,408x = 11,112 × 1,936
  4. Step 4: Simplify right side
    7,408x = 21,512,832
  5. Step 5: Solve for x
    x = 21,512,832/7,408
  6. Step 6: Final answer
    x = 2,904

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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.