Home / 5,811.48-8,020.62-3,721.68

Finding the Fourth Proportional to 5,811.48, 8,020.62 and 3,721.68

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Solution

The fourth proportional to 5,811.48, 8,020.62 and 3,721.68 is: 5,136.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,811.48 : 8,020.62 = 3,721.68 : x
  2. Step 2: Convert to fraction form
    5,811.48/8,020.62 = 3,721.68/x
  3. Step 3: Cross multiply
    5,811.48x = 8,020.62 × 3,721.68
  4. Step 4: Simplify right side
    5,811.48x = 29,850,181.04
  5. Step 5: Solve for x
    x = 29,850,181.04/5,811.48
  6. Step 6: Final answer
    x = 5,136.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.