Home / 3,825.10-5,278.89-2,146.62

Finding the Fourth Proportional to 3,825.10, 5,278.89 and 2,146.62

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Solution

The fourth proportional to 3,825.10, 5,278.89 and 2,146.62 is: 2,962.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.10 : 5,278.89 = 2,146.62 : x
  2. Step 2: Convert to fraction form
    3,825.10/5,278.89 = 2,146.62/x
  3. Step 3: Cross multiply
    3,825.10x = 5,278.89 × 2,146.62
  4. Step 4: Simplify right side
    3,825.10x = 11,331,770.85
  5. Step 5: Solve for x
    x = 11,331,770.85/3,825.10
  6. Step 6: Final answer
    x = 2,962.48

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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.