Home / 5,198.06-7,173.81-2,840.55

Finding the Fourth Proportional to 5,198.06, 7,173.81 and 2,840.55

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Solution

The fourth proportional to 5,198.06, 7,173.81 and 2,840.55 is: 3,920.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,198.06 : 7,173.81 = 2,840.55 : x
  2. Step 2: Convert to fraction form
    5,198.06/7,173.81 = 2,840.55/x
  3. Step 3: Cross multiply
    5,198.06x = 7,173.81 × 2,840.55
  4. Step 4: Simplify right side
    5,198.06x = 20,377,566.00
  5. Step 5: Solve for x
    x = 20,377,566.00/5,198.06
  6. Step 6: Final answer
    x = 3,920.23

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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.