Home / 2,687.86-4,029.60-1,149.94

Finding the Fourth Proportional to 2,687.86, 4,029.60 and 1,149.94

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Solution

The fourth proportional to 2,687.86, 4,029.60 and 1,149.94 is: 1,723.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.86 : 4,029.60 = 1,149.94 : x
  2. Step 2: Convert to fraction form
    2,687.86/4,029.60 = 1,149.94/x
  3. Step 3: Cross multiply
    2,687.86x = 4,029.60 × 1,149.94
  4. Step 4: Simplify right side
    2,687.86x = 4,633,798.22
  5. Step 5: Solve for x
    x = 4,633,798.22/2,687.86
  6. Step 6: Final answer
    x = 1,723.97

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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.