Home / 2,743.45-4,109.78-1,644.55

Finding the Fourth Proportional to 2,743.45, 4,109.78 and 1,644.55

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Solution

The fourth proportional to 2,743.45, 4,109.78 and 1,644.55 is: 2,463.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,743.45 : 4,109.78 = 1,644.55 : x
  2. Step 2: Convert to fraction form
    2,743.45/4,109.78 = 1,644.55/x
  3. Step 3: Cross multiply
    2,743.45x = 4,109.78 × 1,644.55
  4. Step 4: Simplify right side
    2,743.45x = 6,758,730.48
  5. Step 5: Solve for x
    x = 6,758,730.48/2,743.45
  6. Step 6: Final answer
    x = 2,463.59

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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.