Home / 2,576.22-3,861.36-1,186.65

Finding the Fourth Proportional to 2,576.22, 3,861.36 and 1,186.65

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Solution

The fourth proportional to 2,576.22, 3,861.36 and 1,186.65 is: 1,778.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.22 : 3,861.36 = 1,186.65 : x
  2. Step 2: Convert to fraction form
    2,576.22/3,861.36 = 1,186.65/x
  3. Step 3: Cross multiply
    2,576.22x = 3,861.36 × 1,186.65
  4. Step 4: Simplify right side
    2,576.22x = 4,582,082.84
  5. Step 5: Solve for x
    x = 4,582,082.84/2,576.22
  6. Step 6: Final answer
    x = 1,778.61

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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.