Home / 2,198.61-3,055.39-2,171.07

Finding the Fourth Proportional to 2,198.61, 3,055.39 and 2,171.07

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Solution

The fourth proportional to 2,198.61, 3,055.39 and 2,171.07 is: 3,017.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198.61 : 3,055.39 = 2,171.07 : x
  2. Step 2: Convert to fraction form
    2,198.61/3,055.39 = 2,171.07/x
  3. Step 3: Cross multiply
    2,198.61x = 3,055.39 × 2,171.07
  4. Step 4: Simplify right side
    2,198.61x = 6,633,460.14
  5. Step 5: Solve for x
    x = 6,633,460.14/2,198.61
  6. Step 6: Final answer
    x = 3,017.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.