Home / 3,738.48-5,159.20-2,145.26

Finding the Fourth Proportional to 3,738.48, 5,159.20 and 2,145.26

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Solution

The fourth proportional to 3,738.48, 5,159.20 and 2,145.26 is: 2,960.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,738.48 : 5,159.20 = 2,145.26 : x
  2. Step 2: Convert to fraction form
    3,738.48/5,159.20 = 2,145.26/x
  3. Step 3: Cross multiply
    3,738.48x = 5,159.20 × 2,145.26
  4. Step 4: Simplify right side
    3,738.48x = 11,067,821.62
  5. Step 5: Solve for x
    x = 11,067,821.62/3,738.48
  6. Step 6: Final answer
    x = 2,960.52

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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.