Home / 3,676.65-5,515.82-1,211.73

Finding the Fourth Proportional to 3,676.65, 5,515.82 and 1,211.73

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Solution

The fourth proportional to 3,676.65, 5,515.82 and 1,211.73 is: 1,817.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,676.65 : 5,515.82 = 1,211.73 : x
  2. Step 2: Convert to fraction form
    3,676.65/5,515.82 = 1,211.73/x
  3. Step 3: Cross multiply
    3,676.65x = 5,515.82 × 1,211.73
  4. Step 4: Simplify right side
    3,676.65x = 6,683,678.51
  5. Step 5: Solve for x
    x = 6,683,678.51/3,676.65
  6. Step 6: Final answer
    x = 1,817.87

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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.