Home / 3,610.08-5,415.60-1,418.64

Finding the Fourth Proportional to 3,610.08, 5,415.60 and 1,418.64

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Solution

The fourth proportional to 3,610.08, 5,415.60 and 1,418.64 is: 2,128.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.08 : 5,415.60 = 1,418.64 : x
  2. Step 2: Convert to fraction form
    3,610.08/5,415.60 = 1,418.64/x
  3. Step 3: Cross multiply
    3,610.08x = 5,415.60 × 1,418.64
  4. Step 4: Simplify right side
    3,610.08x = 7,682,786.78
  5. Step 5: Solve for x
    x = 7,682,786.78/3,610.08
  6. Step 6: Final answer
    x = 2,128.15

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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.