Home / 1,890.94-2,611.83-1,366.14

Finding the Fourth Proportional to 1,890.94, 2,611.83 and 1,366.14

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Solution

The fourth proportional to 1,890.94, 2,611.83 and 1,366.14 is: 1,886.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.94 : 2,611.83 = 1,366.14 : x
  2. Step 2: Convert to fraction form
    1,890.94/2,611.83 = 1,366.14/x
  3. Step 3: Cross multiply
    1,890.94x = 2,611.83 × 1,366.14
  4. Step 4: Simplify right side
    1,890.94x = 3,568,125.44
  5. Step 5: Solve for x
    x = 3,568,125.44/1,890.94
  6. Step 6: Final answer
    x = 1,886.96

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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.