Home / 3,825.36-5,278.94-2,146.80

Finding the Fourth Proportional to 3,825.36, 5,278.94 and 2,146.80

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Solution

The fourth proportional to 3,825.36, 5,278.94 and 2,146.80 is: 2,962.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.36 : 5,278.94 = 2,146.80 : x
  2. Step 2: Convert to fraction form
    3,825.36/5,278.94 = 2,146.80/x
  3. Step 3: Cross multiply
    3,825.36x = 5,278.94 × 2,146.80
  4. Step 4: Simplify right side
    3,825.36x = 11,332,802.00
  5. Step 5: Solve for x
    x = 11,332,802.00/3,825.36
  6. Step 6: Final answer
    x = 2,962.55

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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.