Home / 1,944.05-2,912.65-1,212.53

Finding the Fourth Proportional to 1,944.05, 2,912.65 and 1,212.53

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Solution

The fourth proportional to 1,944.05, 2,912.65 and 1,212.53 is: 1,816.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,944.05 : 2,912.65 = 1,212.53 : x
  2. Step 2: Convert to fraction form
    1,944.05/2,912.65 = 1,212.53/x
  3. Step 3: Cross multiply
    1,944.05x = 2,912.65 × 1,212.53
  4. Step 4: Simplify right side
    1,944.05x = 3,531,657.91
  5. Step 5: Solve for x
    x = 3,531,657.91/1,944.05
  6. Step 6: Final answer
    x = 1,816.65

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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.