Home / 2,790.14-3,850.74-1,611.19

Finding the Fourth Proportional to 2,790.14, 3,850.74 and 1,611.19

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Solution

The fourth proportional to 2,790.14, 3,850.74 and 1,611.19 is: 2,223.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.14 : 3,850.74 = 1,611.19 : x
  2. Step 2: Convert to fraction form
    2,790.14/3,850.74 = 1,611.19/x
  3. Step 3: Cross multiply
    2,790.14x = 3,850.74 × 1,611.19
  4. Step 4: Simplify right side
    2,790.14x = 6,204,264.15
  5. Step 5: Solve for x
    x = 6,204,264.15/2,790.14
  6. Step 6: Final answer
    x = 2,223.64

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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.