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Finding the Fourth Proportional to 1,809.92, 2,728.26 and 1,704.22

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Solution

The fourth proportional to 1,809.92, 2,728.26 and 1,704.22 is: 2,568.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,809.92 : 2,728.26 = 1,704.22 : x
  2. Step 2: Convert to fraction form
    1,809.92/2,728.26 = 1,704.22/x
  3. Step 3: Cross multiply
    1,809.92x = 2,728.26 × 1,704.22
  4. Step 4: Simplify right side
    1,809.92x = 4,649,555.26
  5. Step 5: Solve for x
    x = 4,649,555.26/1,809.92
  6. Step 6: Final answer
    x = 2,568.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.