Home / 3,480.24-5,216.40-1,629.60

Finding the Fourth Proportional to 3,480.24, 5,216.40 and 1,629.60

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Solution

The fourth proportional to 3,480.24, 5,216.40 and 1,629.60 is: 2,442.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.24 : 5,216.40 = 1,629.60 : x
  2. Step 2: Convert to fraction form
    3,480.24/5,216.40 = 1,629.60/x
  3. Step 3: Cross multiply
    3,480.24x = 5,216.40 × 1,629.60
  4. Step 4: Simplify right side
    3,480.24x = 8,500,645.44
  5. Step 5: Solve for x
    x = 8,500,645.44/3,480.24
  6. Step 6: Final answer
    x = 2,442.55

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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.