Home / 2,211.73-3,054-1,505.05

Finding the Fourth Proportional to 2,211.73, 3,054 and 1,505.05

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Solution

The fourth proportional to 2,211.73, 3,054 and 1,505.05 is: 2,078.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.73 : 3,054 = 1,505.05 : x
  2. Step 2: Convert to fraction form
    2,211.73/3,054 = 1,505.05/x
  3. Step 3: Cross multiply
    2,211.73x = 3,054 × 1,505.05
  4. Step 4: Simplify right side
    2,211.73x = 4,596,422.70
  5. Step 5: Solve for x
    x = 4,596,422.70/2,211.73
  6. Step 6: Final answer
    x = 2,078.20

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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.