Home / 3,177.26-4,383.23-1,917.60

Finding the Fourth Proportional to 3,177.26, 4,383.23 and 1,917.60

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Solution

The fourth proportional to 3,177.26, 4,383.23 and 1,917.60 is: 2,645.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.26 : 4,383.23 = 1,917.60 : x
  2. Step 2: Convert to fraction form
    3,177.26/4,383.23 = 1,917.60/x
  3. Step 3: Cross multiply
    3,177.26x = 4,383.23 × 1,917.60
  4. Step 4: Simplify right side
    3,177.26x = 8,405,281.85
  5. Step 5: Solve for x
    x = 8,405,281.85/3,177.26
  6. Step 6: Final answer
    x = 2,645.45

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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.