Home / 2,826.88-4,234.56-1,728.48

Finding the Fourth Proportional to 2,826.88, 4,234.56 and 1,728.48

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Solution

The fourth proportional to 2,826.88, 4,234.56 and 1,728.48 is: 2,589.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,826.88 : 4,234.56 = 1,728.48 : x
  2. Step 2: Convert to fraction form
    2,826.88/4,234.56 = 1,728.48/x
  3. Step 3: Cross multiply
    2,826.88x = 4,234.56 × 1,728.48
  4. Step 4: Simplify right side
    2,826.88x = 7,319,352.27
  5. Step 5: Solve for x
    x = 7,319,352.27/2,826.88
  6. Step 6: Final answer
    x = 2,589.20

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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.