Home / 4,619.72-6,375.21-2,851.31

Finding the Fourth Proportional to 4,619.72, 6,375.21 and 2,851.31

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Solution

The fourth proportional to 4,619.72, 6,375.21 and 2,851.31 is: 3,934.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,619.72 : 6,375.21 = 2,851.31 : x
  2. Step 2: Convert to fraction form
    4,619.72/6,375.21 = 2,851.31/x
  3. Step 3: Cross multiply
    4,619.72x = 6,375.21 × 2,851.31
  4. Step 4: Simplify right side
    4,619.72x = 18,177,700.03
  5. Step 5: Solve for x
    x = 18,177,700.03/4,619.72
  6. Step 6: Final answer
    x = 3,934.81

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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.