Home / 1,852.45-2,555.38-1,189.41

Finding the Fourth Proportional to 1,852.45, 2,555.38 and 1,189.41

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Solution

The fourth proportional to 1,852.45, 2,555.38 and 1,189.41 is: 1,640.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,852.45 : 2,555.38 = 1,189.41 : x
  2. Step 2: Convert to fraction form
    1,852.45/2,555.38 = 1,189.41/x
  3. Step 3: Cross multiply
    1,852.45x = 2,555.38 × 1,189.41
  4. Step 4: Simplify right side
    1,852.45x = 3,039,375.80
  5. Step 5: Solve for x
    x = 3,039,375.80/1,852.45
  6. Step 6: Final answer
    x = 1,640.73

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1.5x scale

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.