Home / 1,975.70-2,726.42-1,229.38

Finding the Fourth Proportional to 1,975.70, 2,726.42 and 1,229.38

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Solution

The fourth proportional to 1,975.70, 2,726.42 and 1,229.38 is: 1,696.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.70 : 2,726.42 = 1,229.38 : x
  2. Step 2: Convert to fraction form
    1,975.70/2,726.42 = 1,229.38/x
  3. Step 3: Cross multiply
    1,975.70x = 2,726.42 × 1,229.38
  4. Step 4: Simplify right side
    1,975.70x = 3,351,806.22
  5. Step 5: Solve for x
    x = 3,351,806.22/1,975.70
  6. Step 6: Final answer
    x = 1,696.52

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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.