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Finding the Fourth Proportional to 3,174.78, 4,756.95 and 1,093.68

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Solution

The fourth proportional to 3,174.78, 4,756.95 and 1,093.68 is: 1,638.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.78 : 4,756.95 = 1,093.68 : x
  2. Step 2: Convert to fraction form
    3,174.78/4,756.95 = 1,093.68/x
  3. Step 3: Cross multiply
    3,174.78x = 4,756.95 × 1,093.68
  4. Step 4: Simplify right side
    3,174.78x = 5,202,581.08
  5. Step 5: Solve for x
    x = 5,202,581.08/3,174.78
  6. Step 6: Final answer
    x = 1,638.72

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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.