Home / 2,651.50-3,976.14-1,191.64

Finding the Fourth Proportional to 2,651.50, 3,976.14 and 1,191.64

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Solution

The fourth proportional to 2,651.50, 3,976.14 and 1,191.64 is: 1,786.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,651.50 : 3,976.14 = 1,191.64 : x
  2. Step 2: Convert to fraction form
    2,651.50/3,976.14 = 1,191.64/x
  3. Step 3: Cross multiply
    2,651.50x = 3,976.14 × 1,191.64
  4. Step 4: Simplify right side
    2,651.50x = 4,738,127.47
  5. Step 5: Solve for x
    x = 4,738,127.47/2,651.50
  6. Step 6: Final answer
    x = 1,786.96

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Double scale
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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.