Home / 2,013.39-3,016.44-1,321.47

Finding the Fourth Proportional to 2,013.39, 3,016.44 and 1,321.47

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Solution

The fourth proportional to 2,013.39, 3,016.44 and 1,321.47 is: 1,979.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,013.39 : 3,016.44 = 1,321.47 : x
  2. Step 2: Convert to fraction form
    2,013.39/3,016.44 = 1,321.47/x
  3. Step 3: Cross multiply
    2,013.39x = 3,016.44 × 1,321.47
  4. Step 4: Simplify right side
    2,013.39x = 3,986,134.97
  5. Step 5: Solve for x
    x = 3,986,134.97/2,013.39
  6. Step 6: Final answer
    x = 1,979.81

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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.