Home / 3,819.78-5,273.87-2,386.33

Finding the Fourth Proportional to 3,819.78, 5,273.87 and 2,386.33

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Solution

The fourth proportional to 3,819.78, 5,273.87 and 2,386.33 is: 3,294.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819.78 : 5,273.87 = 2,386.33 : x
  2. Step 2: Convert to fraction form
    3,819.78/5,273.87 = 2,386.33/x
  3. Step 3: Cross multiply
    3,819.78x = 5,273.87 × 2,386.33
  4. Step 4: Simplify right side
    3,819.78x = 12,585,194.20
  5. Step 5: Solve for x
    x = 12,585,194.20/3,819.78
  6. Step 6: Final answer
    x = 3,294.74

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1.5x scale

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.