Home / 2,747.55-4,119.30-1,102.85

Finding the Fourth Proportional to 2,747.55, 4,119.30 and 1,102.85

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Solution

The fourth proportional to 2,747.55, 4,119.30 and 1,102.85 is: 1,653.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,747.55 : 4,119.30 = 1,102.85 : x
  2. Step 2: Convert to fraction form
    2,747.55/4,119.30 = 1,102.85/x
  3. Step 3: Cross multiply
    2,747.55x = 4,119.30 × 1,102.85
  4. Step 4: Simplify right side
    2,747.55x = 4,542,949.41
  5. Step 5: Solve for x
    x = 4,542,949.41/2,747.55
  6. Step 6: Final answer
    x = 1,653.45

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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.