Home / 3,825.94-5,279.73-2,147.35

Finding the Fourth Proportional to 3,825.94, 5,279.73 and 2,147.35

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Solution

The fourth proportional to 3,825.94, 5,279.73 and 2,147.35 is: 2,963.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.94 : 5,279.73 = 2,147.35 : x
  2. Step 2: Convert to fraction form
    3,825.94/5,279.73 = 2,147.35/x
  3. Step 3: Cross multiply
    3,825.94x = 5,279.73 × 2,147.35
  4. Step 4: Simplify right side
    3,825.94x = 11,337,428.22
  5. Step 5: Solve for x
    x = 11,337,428.22/3,825.94
  6. Step 6: Final answer
    x = 2,963.31

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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.