Home / 3,824.82-5,278.25-2,145.99

Finding the Fourth Proportional to 3,824.82, 5,278.25 and 2,145.99

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Solution

The fourth proportional to 3,824.82, 5,278.25 and 2,145.99 is: 2,961.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,824.82 : 5,278.25 = 2,145.99 : x
  2. Step 2: Convert to fraction form
    3,824.82/5,278.25 = 2,145.99/x
  3. Step 3: Cross multiply
    3,824.82x = 5,278.25 × 2,145.99
  4. Step 4: Simplify right side
    3,824.82x = 11,327,060.99
  5. Step 5: Solve for x
    x = 11,327,060.99/3,824.82
  6. Step 6: Final answer
    x = 2,961.47

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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.