Home / 2,986.25-4,479.38-1,162.25

Finding the Fourth Proportional to 2,986.25, 4,479.38 and 1,162.25

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Solution

The fourth proportional to 2,986.25, 4,479.38 and 1,162.25 is: 1,743.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986.25 : 4,479.38 = 1,162.25 : x
  2. Step 2: Convert to fraction form
    2,986.25/4,479.38 = 1,162.25/x
  3. Step 3: Cross multiply
    2,986.25x = 4,479.38 × 1,162.25
  4. Step 4: Simplify right side
    2,986.25x = 5,206,153.59
  5. Step 5: Solve for x
    x = 5,206,153.59/2,986.25
  6. Step 6: Final answer
    x = 1,743.38

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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.