Home / 2,798.32-4,198.02-949.74

Finding the Fourth Proportional to 2,798.32, 4,198.02 and 949.74

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Solution

The fourth proportional to 2,798.32, 4,198.02 and 949.74 is: 1,424.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,798.32 : 4,198.02 = 949.74 : x
  2. Step 2: Convert to fraction form
    2,798.32/4,198.02 = 949.74/x
  3. Step 3: Cross multiply
    2,798.32x = 4,198.02 × 949.74
  4. Step 4: Simplify right side
    2,798.32x = 3,987,027.51
  5. Step 5: Solve for x
    x = 3,987,027.51/2,798.32
  6. Step 6: Final answer
    x = 1,424.79

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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.