Home / 1,628.67-2,249.42-1,103.79

Finding the Fourth Proportional to 1,628.67, 2,249.42 and 1,103.79

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Solution

The fourth proportional to 1,628.67, 2,249.42 and 1,103.79 is: 1,524.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628.67 : 2,249.42 = 1,103.79 : x
  2. Step 2: Convert to fraction form
    1,628.67/2,249.42 = 1,103.79/x
  3. Step 3: Cross multiply
    1,628.67x = 2,249.42 × 1,103.79
  4. Step 4: Simplify right side
    1,628.67x = 2,482,895.31
  5. Step 5: Solve for x
    x = 2,482,895.31/1,628.67
  6. Step 6: Final answer
    x = 1,524.49

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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.