Home / 2,343.75-3,234.03-1,991.09

Finding the Fourth Proportional to 2,343.75, 3,234.03 and 1,991.09

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Solution

The fourth proportional to 2,343.75, 3,234.03 and 1,991.09 is: 2,747.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,343.75 : 3,234.03 = 1,991.09 : x
  2. Step 2: Convert to fraction form
    2,343.75/3,234.03 = 1,991.09/x
  3. Step 3: Cross multiply
    2,343.75x = 3,234.03 × 1,991.09
  4. Step 4: Simplify right side
    2,343.75x = 6,439,228.62
  5. Step 5: Solve for x
    x = 6,439,228.62/2,343.75
  6. Step 6: Final answer
    x = 2,747.40

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Double scale
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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.