Home / 6,105.21-9,157.31-1,945.05

Finding the Fourth Proportional to 6,105.21, 9,157.31 and 1,945.05

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Solution

The fourth proportional to 6,105.21, 9,157.31 and 1,945.05 is: 2,917.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,105.21 : 9,157.31 = 1,945.05 : x
  2. Step 2: Convert to fraction form
    6,105.21/9,157.31 = 1,945.05/x
  3. Step 3: Cross multiply
    6,105.21x = 9,157.31 × 1,945.05
  4. Step 4: Simplify right side
    6,105.21x = 17,811,416.09
  5. Step 5: Solve for x
    x = 17,811,416.09/6,105.21
  6. Step 6: Final answer
    x = 2,917.41

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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.