Home / 2,803.07-4,198.72-1,340.75

Finding the Fourth Proportional to 2,803.07, 4,198.72 and 1,340.75

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Solution

The fourth proportional to 2,803.07, 4,198.72 and 1,340.75 is: 2,008.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,803.07 : 4,198.72 = 1,340.75 : x
  2. Step 2: Convert to fraction form
    2,803.07/4,198.72 = 1,340.75/x
  3. Step 3: Cross multiply
    2,803.07x = 4,198.72 × 1,340.75
  4. Step 4: Simplify right side
    2,803.07x = 5,629,433.84
  5. Step 5: Solve for x
    x = 5,629,433.84/2,803.07
  6. Step 6: Final answer
    x = 2,008.31

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1.5x scale

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.