Home / 2,836.26-4,256.33-987.36

Finding the Fourth Proportional to 2,836.26, 4,256.33 and 987.36

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Solution

The fourth proportional to 2,836.26, 4,256.33 and 987.36 is: 1,481.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.26 : 4,256.33 = 987.36 : x
  2. Step 2: Convert to fraction form
    2,836.26/4,256.33 = 987.36/x
  3. Step 3: Cross multiply
    2,836.26x = 4,256.33 × 987.36
  4. Step 4: Simplify right side
    2,836.26x = 4,202,525.05
  5. Step 5: Solve for x
    x = 4,202,525.05/2,836.26
  6. Step 6: Final answer
    x = 1,481.71

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1.5x scale

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.