Home / 1,975.57-2,726.86-1,229.15

Finding the Fourth Proportional to 1,975.57, 2,726.86 and 1,229.15

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Solution

The fourth proportional to 1,975.57, 2,726.86 and 1,229.15 is: 1,696.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.57 : 2,726.86 = 1,229.15 : x
  2. Step 2: Convert to fraction form
    1,975.57/2,726.86 = 1,229.15/x
  3. Step 3: Cross multiply
    1,975.57x = 2,726.86 × 1,229.15
  4. Step 4: Simplify right side
    1,975.57x = 3,351,719.97
  5. Step 5: Solve for x
    x = 3,351,719.97/1,975.57
  6. Step 6: Final answer
    x = 1,696.58

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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.