Home / 4,190.65-6,286.28-1,269.18

Finding the Fourth Proportional to 4,190.65, 6,286.28 and 1,269.18

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Solution

The fourth proportional to 4,190.65, 6,286.28 and 1,269.18 is: 1,903.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,190.65 : 6,286.28 = 1,269.18 : x
  2. Step 2: Convert to fraction form
    4,190.65/6,286.28 = 1,269.18/x
  3. Step 3: Cross multiply
    4,190.65x = 6,286.28 × 1,269.18
  4. Step 4: Simplify right side
    4,190.65x = 7,978,414.50
  5. Step 5: Solve for x
    x = 7,978,414.50/4,190.65
  6. Step 6: Final answer
    x = 1,903.86

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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.