Home / 2,211.10-3,316.79-1,339.54

Finding the Fourth Proportional to 2,211.10, 3,316.79 and 1,339.54

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Solution

The fourth proportional to 2,211.10, 3,316.79 and 1,339.54 is: 2,009.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.10 : 3,316.79 = 1,339.54 : x
  2. Step 2: Convert to fraction form
    2,211.10/3,316.79 = 1,339.54/x
  3. Step 3: Cross multiply
    2,211.10x = 3,316.79 × 1,339.54
  4. Step 4: Simplify right side
    2,211.10x = 4,442,972.88
  5. Step 5: Solve for x
    x = 4,442,972.88/2,211.10
  6. Step 6: Final answer
    x = 2,009.39

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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.