Home / 5,719.48-8,578.40-2,211.14

Finding the Fourth Proportional to 5,719.48, 8,578.40 and 2,211.14

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Solution

The fourth proportional to 5,719.48, 8,578.40 and 2,211.14 is: 3,316.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,719.48 : 8,578.40 = 2,211.14 : x
  2. Step 2: Convert to fraction form
    5,719.48/8,578.40 = 2,211.14/x
  3. Step 3: Cross multiply
    5,719.48x = 8,578.40 × 2,211.14
  4. Step 4: Simplify right side
    5,719.48x = 18,968,016.73
  5. Step 5: Solve for x
    x = 18,968,016.73/5,719.48
  6. Step 6: Final answer
    x = 3,316.39

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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.