Home / 2,211.48-3,316.10-979.27

Finding the Fourth Proportional to 2,211.48, 3,316.10 and 979.27

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Solution

The fourth proportional to 2,211.48, 3,316.10 and 979.27 is: 1,468.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.48 : 3,316.10 = 979.27 : x
  2. Step 2: Convert to fraction form
    2,211.48/3,316.10 = 979.27/x
  3. Step 3: Cross multiply
    2,211.48x = 3,316.10 × 979.27
  4. Step 4: Simplify right side
    2,211.48x = 3,247,351.40
  5. Step 5: Solve for x
    x = 3,247,351.40/2,211.48
  6. Step 6: Final answer
    x = 1,468.41

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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.