Home / 2,255.40-3,379.44-1,158.24

Finding the Fourth Proportional to 2,255.40, 3,379.44 and 1,158.24

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Solution

The fourth proportional to 2,255.40, 3,379.44 and 1,158.24 is: 1,735.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,255.40 : 3,379.44 = 1,158.24 : x
  2. Step 2: Convert to fraction form
    2,255.40/3,379.44 = 1,158.24/x
  3. Step 3: Cross multiply
    2,255.40x = 3,379.44 × 1,158.24
  4. Step 4: Simplify right side
    2,255.40x = 3,914,202.59
  5. Step 5: Solve for x
    x = 3,914,202.59/2,255.40
  6. Step 6: Final answer
    x = 1,735.48

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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.