Home / 3,412.67-5,121.36-1,191.52

Finding the Fourth Proportional to 3,412.67, 5,121.36 and 1,191.52

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Solution

The fourth proportional to 3,412.67, 5,121.36 and 1,191.52 is: 1,788.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.67 : 5,121.36 = 1,191.52 : x
  2. Step 2: Convert to fraction form
    3,412.67/5,121.36 = 1,191.52/x
  3. Step 3: Cross multiply
    3,412.67x = 5,121.36 × 1,191.52
  4. Step 4: Simplify right side
    3,412.67x = 6,102,171.30
  5. Step 5: Solve for x
    x = 6,102,171.30/3,412.67
  6. Step 6: Final answer
    x = 1,788.09

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1.5x scale

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.