Home / 2,074.26-3,111.39-613.54

Finding the Fourth Proportional to 2,074.26, 3,111.39 and 613.54

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Solution

The fourth proportional to 2,074.26, 3,111.39 and 613.54 is: 920.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,074.26 : 3,111.39 = 613.54 : x
  2. Step 2: Convert to fraction form
    2,074.26/3,111.39 = 613.54/x
  3. Step 3: Cross multiply
    2,074.26x = 3,111.39 × 613.54
  4. Step 4: Simplify right side
    2,074.26x = 1,908,962.22
  5. Step 5: Solve for x
    x = 1,908,962.22/2,074.26
  6. Step 6: Final answer
    x = 920.31

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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.