Home / 3,825.63-5,279.31-2,147.13

Finding the Fourth Proportional to 3,825.63, 5,279.31 and 2,147.13

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Solution

The fourth proportional to 3,825.63, 5,279.31 and 2,147.13 is: 2,963.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.63 : 5,279.31 = 2,147.13 : x
  2. Step 2: Convert to fraction form
    3,825.63/5,279.31 = 2,147.13/x
  3. Step 3: Cross multiply
    3,825.63x = 5,279.31 × 2,147.13
  4. Step 4: Simplify right side
    3,825.63x = 11,335,364.88
  5. Step 5: Solve for x
    x = 11,335,364.88/3,825.63
  6. Step 6: Final answer
    x = 2,963.01

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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.