Home / 2,725.22-3,758.19-1,728.72

Finding the Fourth Proportional to 2,725.22, 3,758.19 and 1,728.72

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Solution

The fourth proportional to 2,725.22, 3,758.19 and 1,728.72 is: 2,383.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,725.22 : 3,758.19 = 1,728.72 : x
  2. Step 2: Convert to fraction form
    2,725.22/3,758.19 = 1,728.72/x
  3. Step 3: Cross multiply
    2,725.22x = 3,758.19 × 1,728.72
  4. Step 4: Simplify right side
    2,725.22x = 6,496,858.22
  5. Step 5: Solve for x
    x = 6,496,858.22/2,725.22
  6. Step 6: Final answer
    x = 2,383.98

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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.