Home / 3,431.93-5,156.11-2,201.74

Finding the Fourth Proportional to 3,431.93, 5,156.11 and 2,201.74

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Solution

The fourth proportional to 3,431.93, 5,156.11 and 2,201.74 is: 3,307.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.93 : 5,156.11 = 2,201.74 : x
  2. Step 2: Convert to fraction form
    3,431.93/5,156.11 = 2,201.74/x
  3. Step 3: Cross multiply
    3,431.93x = 5,156.11 × 2,201.74
  4. Step 4: Simplify right side
    3,431.93x = 11,352,413.63
  5. Step 5: Solve for x
    x = 11,352,413.63/3,431.93
  6. Step 6: Final answer
    x = 3,307.88

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1.5x scale

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.