Home / 2,535.47-3,786.54-2,161.28

Finding the Fourth Proportional to 2,535.47, 3,786.54 and 2,161.28

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Solution

The fourth proportional to 2,535.47, 3,786.54 and 2,161.28 is: 3,227.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,535.47 : 3,786.54 = 2,161.28 : x
  2. Step 2: Convert to fraction form
    2,535.47/3,786.54 = 2,161.28/x
  3. Step 3: Cross multiply
    2,535.47x = 3,786.54 × 2,161.28
  4. Step 4: Simplify right side
    2,535.47x = 8,183,754.24
  5. Step 5: Solve for x
    x = 8,183,754.24/2,535.47
  6. Step 6: Final answer
    x = 3,227.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.