Home / 3,734.26-5,155.05-2,161.78

Finding the Fourth Proportional to 3,734.26, 5,155.05 and 2,161.78

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Solution

The fourth proportional to 3,734.26, 5,155.05 and 2,161.78 is: 2,984.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,734.26 : 5,155.05 = 2,161.78 : x
  2. Step 2: Convert to fraction form
    3,734.26/5,155.05 = 2,161.78/x
  3. Step 3: Cross multiply
    3,734.26x = 5,155.05 × 2,161.78
  4. Step 4: Simplify right side
    3,734.26x = 11,144,083.99
  5. Step 5: Solve for x
    x = 11,144,083.99/3,734.26
  6. Step 6: Final answer
    x = 2,984.28

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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.