Home / 5,216.46-7,198.44-2,858.55

Finding the Fourth Proportional to 5,216.46, 7,198.44 and 2,858.55

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Solution

The fourth proportional to 5,216.46, 7,198.44 and 2,858.55 is: 3,944.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.46 : 7,198.44 = 2,858.55 : x
  2. Step 2: Convert to fraction form
    5,216.46/7,198.44 = 2,858.55/x
  3. Step 3: Cross multiply
    5,216.46x = 7,198.44 × 2,858.55
  4. Step 4: Simplify right side
    5,216.46x = 20,577,100.66
  5. Step 5: Solve for x
    x = 20,577,100.66/5,216.46
  6. Step 6: Final answer
    x = 3,944.65

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1.5x scale

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.