Home / 1,623.15-2,239.53-1,091.09

Finding the Fourth Proportional to 1,623.15, 2,239.53 and 1,091.09

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Solution

The fourth proportional to 1,623.15, 2,239.53 and 1,091.09 is: 1,505.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,623.15 : 2,239.53 = 1,091.09 : x
  2. Step 2: Convert to fraction form
    1,623.15/2,239.53 = 1,091.09/x
  3. Step 3: Cross multiply
    1,623.15x = 2,239.53 × 1,091.09
  4. Step 4: Simplify right side
    1,623.15x = 2,443,517.59
  5. Step 5: Solve for x
    x = 2,443,517.59/1,623.15
  6. Step 6: Final answer
    x = 1,505.42

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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.