Home / 1,914.07-2,640.58-1,167.91

Finding the Fourth Proportional to 1,914.07, 2,640.58 and 1,167.91

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Solution

The fourth proportional to 1,914.07, 2,640.58 and 1,167.91 is: 1,611.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,914.07 : 2,640.58 = 1,167.91 : x
  2. Step 2: Convert to fraction form
    1,914.07/2,640.58 = 1,167.91/x
  3. Step 3: Cross multiply
    1,914.07x = 2,640.58 × 1,167.91
  4. Step 4: Simplify right side
    1,914.07x = 3,083,959.79
  5. Step 5: Solve for x
    x = 3,083,959.79/1,914.07
  6. Step 6: Final answer
    x = 1,611.21

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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.