Home / 3,586.48-5,379.84-1,121.38

Finding the Fourth Proportional to 3,586.48, 5,379.84 and 1,121.38

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Solution

The fourth proportional to 3,586.48, 5,379.84 and 1,121.38 is: 1,682.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,586.48 : 5,379.84 = 1,121.38 : x
  2. Step 2: Convert to fraction form
    3,586.48/5,379.84 = 1,121.38/x
  3. Step 3: Cross multiply
    3,586.48x = 5,379.84 × 1,121.38
  4. Step 4: Simplify right side
    3,586.48x = 6,032,844.98
  5. Step 5: Solve for x
    x = 6,032,844.98/3,586.48
  6. Step 6: Final answer
    x = 1,682.11

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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.