Home / 1,974.12-2,961.54-675.27

Finding the Fourth Proportional to 1,974.12, 2,961.54 and 675.27

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Solution

The fourth proportional to 1,974.12, 2,961.54 and 675.27 is: 1,013.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974.12 : 2,961.54 = 675.27 : x
  2. Step 2: Convert to fraction form
    1,974.12/2,961.54 = 675.27/x
  3. Step 3: Cross multiply
    1,974.12x = 2,961.54 × 675.27
  4. Step 4: Simplify right side
    1,974.12x = 1,999,839.12
  5. Step 5: Solve for x
    x = 1,999,839.12/1,974.12
  6. Step 6: Final answer
    x = 1,013.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.