Home / 3,825.71-5,279.55-2,147.24

Finding the Fourth Proportional to 3,825.71, 5,279.55 and 2,147.24

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Solution

The fourth proportional to 3,825.71, 5,279.55 and 2,147.24 is: 2,963.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.71 : 5,279.55 = 2,147.24 : x
  2. Step 2: Convert to fraction form
    3,825.71/5,279.55 = 2,147.24/x
  3. Step 3: Cross multiply
    3,825.71x = 5,279.55 × 2,147.24
  4. Step 4: Simplify right side
    3,825.71x = 11,336,434.54
  5. Step 5: Solve for x
    x = 11,336,434.54/3,825.71
  6. Step 6: Final answer
    x = 2,963.23

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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.