Home / 4,190.56-6,286.13-1,269.09

Finding the Fourth Proportional to 4,190.56, 6,286.13 and 1,269.09

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Solution

The fourth proportional to 4,190.56, 6,286.13 and 1,269.09 is: 1,903.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,190.56 : 6,286.13 = 1,269.09 : x
  2. Step 2: Convert to fraction form
    4,190.56/6,286.13 = 1,269.09/x
  3. Step 3: Cross multiply
    4,190.56x = 6,286.13 × 1,269.09
  4. Step 4: Simplify right side
    4,190.56x = 7,977,664.72
  5. Step 5: Solve for x
    x = 7,977,664.72/4,190.56
  6. Step 6: Final answer
    x = 1,903.72

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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.