Home / 2,655.73-3,986.39-1,270.23

Finding the Fourth Proportional to 2,655.73, 3,986.39 and 1,270.23

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Solution

The fourth proportional to 2,655.73, 3,986.39 and 1,270.23 is: 1,906.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.73 : 3,986.39 = 1,270.23 : x
  2. Step 2: Convert to fraction form
    2,655.73/3,986.39 = 1,270.23/x
  3. Step 3: Cross multiply
    2,655.73x = 3,986.39 × 1,270.23
  4. Step 4: Simplify right side
    2,655.73x = 5,063,632.17
  5. Step 5: Solve for x
    x = 5,063,632.17/2,655.73
  6. Step 6: Final answer
    x = 1,906.68

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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.