Home / 2,851.28-4,273.20-1,619.24

Finding the Fourth Proportional to 2,851.28, 4,273.20 and 1,619.24

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Solution

The fourth proportional to 2,851.28, 4,273.20 and 1,619.24 is: 2,426.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.28 : 4,273.20 = 1,619.24 : x
  2. Step 2: Convert to fraction form
    2,851.28/4,273.20 = 1,619.24/x
  3. Step 3: Cross multiply
    2,851.28x = 4,273.20 × 1,619.24
  4. Step 4: Simplify right side
    2,851.28x = 6,919,336.37
  5. Step 5: Solve for x
    x = 6,919,336.37/2,851.28
  6. Step 6: Final answer
    x = 2,426.75

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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.