Home / 1,917.14-2,876.06-1,187.54

Finding the Fourth Proportional to 1,917.14, 2,876.06 and 1,187.54

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Solution

The fourth proportional to 1,917.14, 2,876.06 and 1,187.54 is: 1,781.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917.14 : 2,876.06 = 1,187.54 : x
  2. Step 2: Convert to fraction form
    1,917.14/2,876.06 = 1,187.54/x
  3. Step 3: Cross multiply
    1,917.14x = 2,876.06 × 1,187.54
  4. Step 4: Simplify right side
    1,917.14x = 3,415,436.29
  5. Step 5: Solve for x
    x = 3,415,436.29/1,917.14
  6. Step 6: Final answer
    x = 1,781.53

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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.