Home / 3,825.17-5,278.79-2,146.94

Finding the Fourth Proportional to 3,825.17, 5,278.79 and 2,146.94

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Solution

The fourth proportional to 3,825.17, 5,278.79 and 2,146.94 is: 2,962.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.17 : 5,278.79 = 2,146.94 : x
  2. Step 2: Convert to fraction form
    3,825.17/5,278.79 = 2,146.94/x
  3. Step 3: Cross multiply
    3,825.17x = 5,278.79 × 2,146.94
  4. Step 4: Simplify right side
    3,825.17x = 11,333,234.67
  5. Step 5: Solve for x
    x = 11,333,234.67/3,825.17
  6. Step 6: Final answer
    x = 2,962.81

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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.