Home / 1,934.26-2,669.70-1,188.61

Finding the Fourth Proportional to 1,934.26, 2,669.70 and 1,188.61

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Solution

The fourth proportional to 1,934.26, 2,669.70 and 1,188.61 is: 1,640.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,934.26 : 2,669.70 = 1,188.61 : x
  2. Step 2: Convert to fraction form
    1,934.26/2,669.70 = 1,188.61/x
  3. Step 3: Cross multiply
    1,934.26x = 2,669.70 × 1,188.61
  4. Step 4: Simplify right side
    1,934.26x = 3,173,232.12
  5. Step 5: Solve for x
    x = 3,173,232.12/1,934.26
  6. Step 6: Final answer
    x = 1,640.54

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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.