Home / 6,255.75-9,383.72-1,638.75

Finding the Fourth Proportional to 6,255.75, 9,383.72 and 1,638.75

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Solution

The fourth proportional to 6,255.75, 9,383.72 and 1,638.75 is: 2,458.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,255.75 : 9,383.72 = 1,638.75 : x
  2. Step 2: Convert to fraction form
    6,255.75/9,383.72 = 1,638.75/x
  3. Step 3: Cross multiply
    6,255.75x = 9,383.72 × 1,638.75
  4. Step 4: Simplify right side
    6,255.75x = 15,377,571.15
  5. Step 5: Solve for x
    x = 15,377,571.15/6,255.75
  6. Step 6: Final answer
    x = 2,458.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.