Home / 3,042.89-4,198.94-1,783.79

Finding the Fourth Proportional to 3,042.89, 4,198.94 and 1,783.79

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Solution

The fourth proportional to 3,042.89, 4,198.94 and 1,783.79 is: 2,461.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,042.89 : 4,198.94 = 1,783.79 : x
  2. Step 2: Convert to fraction form
    3,042.89/4,198.94 = 1,783.79/x
  3. Step 3: Cross multiply
    3,042.89x = 4,198.94 × 1,783.79
  4. Step 4: Simplify right side
    3,042.89x = 7,489,997.27
  5. Step 5: Solve for x
    x = 7,489,997.27/3,042.89
  6. Step 6: Final answer
    x = 2,461.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.