Home / 3,784.26-5,222.44-2,105.66

Finding the Fourth Proportional to 3,784.26, 5,222.44 and 2,105.66

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Solution

The fourth proportional to 3,784.26, 5,222.44 and 2,105.66 is: 2,905.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784.26 : 5,222.44 = 2,105.66 : x
  2. Step 2: Convert to fraction form
    3,784.26/5,222.44 = 2,105.66/x
  3. Step 3: Cross multiply
    3,784.26x = 5,222.44 × 2,105.66
  4. Step 4: Simplify right side
    3,784.26x = 10,996,683.01
  5. Step 5: Solve for x
    x = 10,996,683.01/3,784.26
  6. Step 6: Final answer
    x = 2,905.90

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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.