Home / 3,945.58-5,917.34-1,171.62

Finding the Fourth Proportional to 3,945.58, 5,917.34 and 1,171.62

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Solution

The fourth proportional to 3,945.58, 5,917.34 and 1,171.62 is: 1,757.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.58 : 5,917.34 = 1,171.62 : x
  2. Step 2: Convert to fraction form
    3,945.58/5,917.34 = 1,171.62/x
  3. Step 3: Cross multiply
    3,945.58x = 5,917.34 × 1,171.62
  4. Step 4: Simplify right side
    3,945.58x = 6,932,878.28
  5. Step 5: Solve for x
    x = 6,932,878.28/3,945.58
  6. Step 6: Final answer
    x = 1,757.13

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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.