Home / 1,819.78-2,716.43-1,684.54

Finding the Fourth Proportional to 1,819.78, 2,716.43 and 1,684.54

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Solution

The fourth proportional to 1,819.78, 2,716.43 and 1,684.54 is: 2,514.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819.78 : 2,716.43 = 1,684.54 : x
  2. Step 2: Convert to fraction form
    1,819.78/2,716.43 = 1,684.54/x
  3. Step 3: Cross multiply
    1,819.78x = 2,716.43 × 1,684.54
  4. Step 4: Simplify right side
    1,819.78x = 4,575,934.99
  5. Step 5: Solve for x
    x = 4,575,934.99/1,819.78
  6. Step 6: Final answer
    x = 2,514.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.