Home / 2,211.81-3,316.05-1,907.25

Finding the Fourth Proportional to 2,211.81, 3,316.05 and 1,907.25

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Solution

The fourth proportional to 2,211.81, 3,316.05 and 1,907.25 is: 2,859.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.81 : 3,316.05 = 1,907.25 : x
  2. Step 2: Convert to fraction form
    2,211.81/3,316.05 = 1,907.25/x
  3. Step 3: Cross multiply
    2,211.81x = 3,316.05 × 1,907.25
  4. Step 4: Simplify right side
    2,211.81x = 6,324,536.36
  5. Step 5: Solve for x
    x = 6,324,536.36/2,211.81
  6. Step 6: Final answer
    x = 2,859.44

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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.