Home / 2,081.16-3,119.80-1,348.56

Finding the Fourth Proportional to 2,081.16, 3,119.80 and 1,348.56

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Solution

The fourth proportional to 2,081.16, 3,119.80 and 1,348.56 is: 2,021.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,081.16 : 3,119.80 = 1,348.56 : x
  2. Step 2: Convert to fraction form
    2,081.16/3,119.80 = 1,348.56/x
  3. Step 3: Cross multiply
    2,081.16x = 3,119.80 × 1,348.56
  4. Step 4: Simplify right side
    2,081.16x = 4,207,237.49
  5. Step 5: Solve for x
    x = 4,207,237.49/2,081.16
  6. Step 6: Final answer
    x = 2,021.58

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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.