Home / 2,799.44-3,868.24-2,012.12

Finding the Fourth Proportional to 2,799.44, 3,868.24 and 2,012.12

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Solution

The fourth proportional to 2,799.44, 3,868.24 and 2,012.12 is: 2,780.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799.44 : 3,868.24 = 2,012.12 : x
  2. Step 2: Convert to fraction form
    2,799.44/3,868.24 = 2,012.12/x
  3. Step 3: Cross multiply
    2,799.44x = 3,868.24 × 2,012.12
  4. Step 4: Simplify right side
    2,799.44x = 7,783,363.07
  5. Step 5: Solve for x
    x = 7,783,363.07/2,799.44
  6. Step 6: Final answer
    x = 2,780.33

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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.