Home / 1,968.27-2,954.20-1,239.15

Finding the Fourth Proportional to 1,968.27, 2,954.20 and 1,239.15

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Solution

The fourth proportional to 1,968.27, 2,954.20 and 1,239.15 is: 1,859.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968.27 : 2,954.20 = 1,239.15 : x
  2. Step 2: Convert to fraction form
    1,968.27/2,954.20 = 1,239.15/x
  3. Step 3: Cross multiply
    1,968.27x = 2,954.20 × 1,239.15
  4. Step 4: Simplify right side
    1,968.27x = 3,660,696.93
  5. Step 5: Solve for x
    x = 3,660,696.93/1,968.27
  6. Step 6: Final answer
    x = 1,859.86

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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.