Home / 2,803.79-4,205.39-1,243.82

Finding the Fourth Proportional to 2,803.79, 4,205.39 and 1,243.82

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Solution

The fourth proportional to 2,803.79, 4,205.39 and 1,243.82 is: 1,865.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,803.79 : 4,205.39 = 1,243.82 : x
  2. Step 2: Convert to fraction form
    2,803.79/4,205.39 = 1,243.82/x
  3. Step 3: Cross multiply
    2,803.79x = 4,205.39 × 1,243.82
  4. Step 4: Simplify right side
    2,803.79x = 5,230,720.94
  5. Step 5: Solve for x
    x = 5,230,720.94/2,803.79
  6. Step 6: Final answer
    x = 1,865.59

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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.