Home / 1,853.21-2,781.73-1,074.73

Finding the Fourth Proportional to 1,853.21, 2,781.73 and 1,074.73

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Solution

The fourth proportional to 1,853.21, 2,781.73 and 1,074.73 is: 1,613.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,853.21 : 2,781.73 = 1,074.73 : x
  2. Step 2: Convert to fraction form
    1,853.21/2,781.73 = 1,074.73/x
  3. Step 3: Cross multiply
    1,853.21x = 2,781.73 × 1,074.73
  4. Step 4: Simplify right side
    1,853.21x = 2,989,608.68
  5. Step 5: Solve for x
    x = 2,989,608.68/1,853.21
  6. Step 6: Final answer
    x = 1,613.21

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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.