Home / 2,685.69-4,028.27-1,224.45

Finding the Fourth Proportional to 2,685.69, 4,028.27 and 1,224.45

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Solution

The fourth proportional to 2,685.69, 4,028.27 and 1,224.45 is: 1,836.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.69 : 4,028.27 = 1,224.45 : x
  2. Step 2: Convert to fraction form
    2,685.69/4,028.27 = 1,224.45/x
  3. Step 3: Cross multiply
    2,685.69x = 4,028.27 × 1,224.45
  4. Step 4: Simplify right side
    2,685.69x = 4,932,409.08
  5. Step 5: Solve for x
    x = 4,932,409.08/2,685.69
  6. Step 6: Final answer
    x = 1,836.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.