Home / 1,761.03-2,640.33-1,112.22

Finding the Fourth Proportional to 1,761.03, 2,640.33 and 1,112.22

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Solution

The fourth proportional to 1,761.03, 2,640.33 and 1,112.22 is: 1,667.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761.03 : 2,640.33 = 1,112.22 : x
  2. Step 2: Convert to fraction form
    1,761.03/2,640.33 = 1,112.22/x
  3. Step 3: Cross multiply
    1,761.03x = 2,640.33 × 1,112.22
  4. Step 4: Simplify right side
    1,761.03x = 2,936,627.83
  5. Step 5: Solve for x
    x = 2,936,627.83/1,761.03
  6. Step 6: Final answer
    x = 1,667.56

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1.5x scale

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.