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Finding the Fourth Proportional to 2,743.70, 4,113.73 and 1,511.70

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Solution

The fourth proportional to 2,743.70, 4,113.73 and 1,511.70 is: 2,266.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,743.70 : 4,113.73 = 1,511.70 : x
  2. Step 2: Convert to fraction form
    2,743.70/4,113.73 = 1,511.70/x
  3. Step 3: Cross multiply
    2,743.70x = 4,113.73 × 1,511.70
  4. Step 4: Simplify right side
    2,743.70x = 6,218,725.64
  5. Step 5: Solve for x
    x = 6,218,725.64/2,743.70
  6. Step 6: Final answer
    x = 2,266.55

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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.