Home / 2,778.90-3,834.86-1,519.95

Finding the Fourth Proportional to 2,778.90, 3,834.86 and 1,519.95

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Solution

The fourth proportional to 2,778.90, 3,834.86 and 1,519.95 is: 2,097.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.90 : 3,834.86 = 1,519.95 : x
  2. Step 2: Convert to fraction form
    2,778.90/3,834.86 = 1,519.95/x
  3. Step 3: Cross multiply
    2,778.90x = 3,834.86 × 1,519.95
  4. Step 4: Simplify right side
    2,778.90x = 5,828,813.64
  5. Step 5: Solve for x
    x = 5,828,813.64/2,778.90
  6. Step 6: Final answer
    x = 2,097.53

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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.