Home / 2,782.14-3,844.47-1,994.94

Finding the Fourth Proportional to 2,782.14, 3,844.47 and 1,994.94

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Solution

The fourth proportional to 2,782.14, 3,844.47 and 1,994.94 is: 2,756.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.14 : 3,844.47 = 1,994.94 : x
  2. Step 2: Convert to fraction form
    2,782.14/3,844.47 = 1,994.94/x
  3. Step 3: Cross multiply
    2,782.14x = 3,844.47 × 1,994.94
  4. Step 4: Simplify right side
    2,782.14x = 7,669,486.98
  5. Step 5: Solve for x
    x = 7,669,486.98/2,782.14
  6. Step 6: Final answer
    x = 2,756.69

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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.