Home / 2,745.12-4,118.65-1,359.42

Finding the Fourth Proportional to 2,745.12, 4,118.65 and 1,359.42

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Solution

The fourth proportional to 2,745.12, 4,118.65 and 1,359.42 is: 2,039.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,745.12 : 4,118.65 = 1,359.42 : x
  2. Step 2: Convert to fraction form
    2,745.12/4,118.65 = 1,359.42/x
  3. Step 3: Cross multiply
    2,745.12x = 4,118.65 × 1,359.42
  4. Step 4: Simplify right side
    2,745.12x = 5,598,975.18
  5. Step 5: Solve for x
    x = 5,598,975.18/2,745.12
  6. Step 6: Final answer
    x = 2,039.61

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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.