Home / 1,917.86-2,873.84-1,136.31

Finding the Fourth Proportional to 1,917.86, 2,873.84 and 1,136.31

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Solution

The fourth proportional to 1,917.86, 2,873.84 and 1,136.31 is: 1,702.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917.86 : 2,873.84 = 1,136.31 : x
  2. Step 2: Convert to fraction form
    1,917.86/2,873.84 = 1,136.31/x
  3. Step 3: Cross multiply
    1,917.86x = 2,873.84 × 1,136.31
  4. Step 4: Simplify right side
    1,917.86x = 3,265,563.06
  5. Step 5: Solve for x
    x = 3,265,563.06/1,917.86
  6. Step 6: Final answer
    x = 1,702.71

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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.