Home / 2,049.26-2,826.92-1,386.35

Finding the Fourth Proportional to 2,049.26, 2,826.92 and 1,386.35

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Solution

The fourth proportional to 2,049.26, 2,826.92 and 1,386.35 is: 1,912.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,049.26 : 2,826.92 = 1,386.35 : x
  2. Step 2: Convert to fraction form
    2,049.26/2,826.92 = 1,386.35/x
  3. Step 3: Cross multiply
    2,049.26x = 2,826.92 × 1,386.35
  4. Step 4: Simplify right side
    2,049.26x = 3,919,100.54
  5. Step 5: Solve for x
    x = 3,919,100.54/2,049.26
  6. Step 6: Final answer
    x = 1,912.45

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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.