Home / 1,986.03-2,976.60-1,660.41

Finding the Fourth Proportional to 1,986.03, 2,976.60 and 1,660.41

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Solution

The fourth proportional to 1,986.03, 2,976.60 and 1,660.41 is: 2,488.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986.03 : 2,976.60 = 1,660.41 : x
  2. Step 2: Convert to fraction form
    1,986.03/2,976.60 = 1,660.41/x
  3. Step 3: Cross multiply
    1,986.03x = 2,976.60 × 1,660.41
  4. Step 4: Simplify right side
    1,986.03x = 4,942,376.41
  5. Step 5: Solve for x
    x = 4,942,376.41/1,986.03
  6. Step 6: Final answer
    x = 2,488.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.