Home / 3,767.40-5,197.60-2,172.92

Finding the Fourth Proportional to 3,767.40, 5,197.60 and 2,172.92

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Solution

The fourth proportional to 3,767.40, 5,197.60 and 2,172.92 is: 2,997.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,767.40 : 5,197.60 = 2,172.92 : x
  2. Step 2: Convert to fraction form
    3,767.40/5,197.60 = 2,172.92/x
  3. Step 3: Cross multiply
    3,767.40x = 5,197.60 × 2,172.92
  4. Step 4: Simplify right side
    3,767.40x = 11,293,945.72
  5. Step 5: Solve for x
    x = 11,293,945.72/3,767.40
  6. Step 6: Final answer
    x = 2,997.81

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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.