Home / 2,578.50-3,556.62-1,727.78

Finding the Fourth Proportional to 2,578.50, 3,556.62 and 1,727.78

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Solution

The fourth proportional to 2,578.50, 3,556.62 and 1,727.78 is: 2,383.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.50 : 3,556.62 = 1,727.78 : x
  2. Step 2: Convert to fraction form
    2,578.50/3,556.62 = 1,727.78/x
  3. Step 3: Cross multiply
    2,578.50x = 3,556.62 × 1,727.78
  4. Step 4: Simplify right side
    2,578.50x = 6,145,039.12
  5. Step 5: Solve for x
    x = 6,145,039.12/2,578.50
  6. Step 6: Final answer
    x = 2,383.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.