Home / 3,813.25-5,261.70-2,134.57

Finding the Fourth Proportional to 3,813.25, 5,261.70 and 2,134.57

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Solution

The fourth proportional to 3,813.25, 5,261.70 and 2,134.57 is: 2,945.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,813.25 : 5,261.70 = 2,134.57 : x
  2. Step 2: Convert to fraction form
    3,813.25/5,261.70 = 2,134.57/x
  3. Step 3: Cross multiply
    3,813.25x = 5,261.70 × 2,134.57
  4. Step 4: Simplify right side
    3,813.25x = 11,231,466.97
  5. Step 5: Solve for x
    x = 11,231,466.97/3,813.25
  6. Step 6: Final answer
    x = 2,945.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.