Home / 3,720.75-5,134.44-2,229.49

Finding the Fourth Proportional to 3,720.75, 5,134.44 and 2,229.49

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Solution

The fourth proportional to 3,720.75, 5,134.44 and 2,229.49 is: 3,076.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.75 : 5,134.44 = 2,229.49 : x
  2. Step 2: Convert to fraction form
    3,720.75/5,134.44 = 2,229.49/x
  3. Step 3: Cross multiply
    3,720.75x = 5,134.44 × 2,229.49
  4. Step 4: Simplify right side
    3,720.75x = 11,447,182.64
  5. Step 5: Solve for x
    x = 11,447,182.64/3,720.75
  6. Step 6: Final answer
    x = 3,076.58

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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.