Home / 1,619.26-2,234.73-1,123.54

Finding the Fourth Proportional to 1,619.26, 2,234.73 and 1,123.54

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Solution

The fourth proportional to 1,619.26, 2,234.73 and 1,123.54 is: 1,550.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619.26 : 2,234.73 = 1,123.54 : x
  2. Step 2: Convert to fraction form
    1,619.26/2,234.73 = 1,123.54/x
  3. Step 3: Cross multiply
    1,619.26x = 2,234.73 × 1,123.54
  4. Step 4: Simplify right side
    1,619.26x = 2,510,808.54
  5. Step 5: Solve for x
    x = 2,510,808.54/1,619.26
  6. Step 6: Final answer
    x = 1,550.59

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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.