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Finding the Fourth Proportional to 3,183, 4,774.52 and 874.52

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Solution

The fourth proportional to 3,183, 4,774.52 and 874.52 is: 1,311.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,183 : 4,774.52 = 874.52 : x
  2. Step 2: Convert to fraction form
    3,183/4,774.52 = 874.52/x
  3. Step 3: Cross multiply
    3,183x = 4,774.52 × 874.52
  4. Step 4: Simplify right side
    3,183x = 4,175,413.23
  5. Step 5: Solve for x
    x = 4,175,413.23/3,183
  6. Step 6: Final answer
    x = 1,311.79

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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.