Home / 2,576.30-3,865.08-1,190.61

Finding the Fourth Proportional to 2,576.30, 3,865.08 and 1,190.61

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Solution

The fourth proportional to 2,576.30, 3,865.08 and 1,190.61 is: 1,786.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.30 : 3,865.08 = 1,190.61 : x
  2. Step 2: Convert to fraction form
    2,576.30/3,865.08 = 1,190.61/x
  3. Step 3: Cross multiply
    2,576.30x = 3,865.08 × 1,190.61
  4. Step 4: Simplify right side
    2,576.30x = 4,601,802.90
  5. Step 5: Solve for x
    x = 4,601,802.90/2,576.30
  6. Step 6: Final answer
    x = 1,786.21

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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.