Home / 1,603.91-2,212.59-1,249.19

Finding the Fourth Proportional to 1,603.91, 2,212.59 and 1,249.19

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Solution

The fourth proportional to 1,603.91, 2,212.59 and 1,249.19 is: 1,723.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603.91 : 2,212.59 = 1,249.19 : x
  2. Step 2: Convert to fraction form
    1,603.91/2,212.59 = 1,249.19/x
  3. Step 3: Cross multiply
    1,603.91x = 2,212.59 × 1,249.19
  4. Step 4: Simplify right side
    1,603.91x = 2,763,934.24
  5. Step 5: Solve for x
    x = 2,763,934.24/1,603.91
  6. Step 6: Final answer
    x = 1,723.25

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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.