Home / 1,338.27-2,017.44-1,249.08

Finding the Fourth Proportional to 1,338.27, 2,017.44 and 1,249.08

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Solution

The fourth proportional to 1,338.27, 2,017.44 and 1,249.08 is: 1,882.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338.27 : 2,017.44 = 1,249.08 : x
  2. Step 2: Convert to fraction form
    1,338.27/2,017.44 = 1,249.08/x
  3. Step 3: Cross multiply
    1,338.27x = 2,017.44 × 1,249.08
  4. Step 4: Simplify right side
    1,338.27x = 2,519,943.96
  5. Step 5: Solve for x
    x = 2,519,943.96/1,338.27
  6. Step 6: Final answer
    x = 1,882.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.