Home / 3,728.26-5,144.68-2,156.46

Finding the Fourth Proportional to 3,728.26, 5,144.68 and 2,156.46

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Solution

The fourth proportional to 3,728.26, 5,144.68 and 2,156.46 is: 2,975.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,728.26 : 5,144.68 = 2,156.46 : x
  2. Step 2: Convert to fraction form
    3,728.26/5,144.68 = 2,156.46/x
  3. Step 3: Cross multiply
    3,728.26x = 5,144.68 × 2,156.46
  4. Step 4: Simplify right side
    3,728.26x = 11,094,296.63
  5. Step 5: Solve for x
    x = 11,094,296.63/3,728.26
  6. Step 6: Final answer
    x = 2,975.73

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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.