Home / 3,824.37-5,278.09-2,145.46

Finding the Fourth Proportional to 3,824.37, 5,278.09 and 2,145.46

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Solution

The fourth proportional to 3,824.37, 5,278.09 and 2,145.46 is: 2,960.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,824.37 : 5,278.09 = 2,145.46 : x
  2. Step 2: Convert to fraction form
    3,824.37/5,278.09 = 2,145.46/x
  3. Step 3: Cross multiply
    3,824.37x = 5,278.09 × 2,145.46
  4. Step 4: Simplify right side
    3,824.37x = 11,323,930.97
  5. Step 5: Solve for x
    x = 11,323,930.97/3,824.37
  6. Step 6: Final answer
    x = 2,960.99

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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.