Home / 2,146.94-3,218.64-1,326.11

Finding the Fourth Proportional to 2,146.94, 3,218.64 and 1,326.11

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Solution

The fourth proportional to 2,146.94, 3,218.64 and 1,326.11 is: 1,988.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,146.94 : 3,218.64 = 1,326.11 : x
  2. Step 2: Convert to fraction form
    2,146.94/3,218.64 = 1,326.11/x
  3. Step 3: Cross multiply
    2,146.94x = 3,218.64 × 1,326.11
  4. Step 4: Simplify right side
    2,146.94x = 4,268,249.62
  5. Step 5: Solve for x
    x = 4,268,249.62/2,146.94
  6. Step 6: Final answer
    x = 1,988.06

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1.5x scale

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.