Home / 3,458.60-5,185.26-1,728.44

Finding the Fourth Proportional to 3,458.60, 5,185.26 and 1,728.44

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Solution

The fourth proportional to 3,458.60, 5,185.26 and 1,728.44 is: 2,591.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,458.60 : 5,185.26 = 1,728.44 : x
  2. Step 2: Convert to fraction form
    3,458.60/5,185.26 = 1,728.44/x
  3. Step 3: Cross multiply
    3,458.60x = 5,185.26 × 1,728.44
  4. Step 4: Simplify right side
    3,458.60x = 8,962,410.79
  5. Step 5: Solve for x
    x = 8,962,410.79/3,458.60
  6. Step 6: Final answer
    x = 2,591.34

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Half scale
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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.