Home / 3,410.40-5,115.60-1,682.40

Finding the Fourth Proportional to 3,410.40, 5,115.60 and 1,682.40

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Solution

The fourth proportional to 3,410.40, 5,115.60 and 1,682.40 is: 2,523.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,410.40 : 5,115.60 = 1,682.40 : x
  2. Step 2: Convert to fraction form
    3,410.40/5,115.60 = 1,682.40/x
  3. Step 3: Cross multiply
    3,410.40x = 5,115.60 × 1,682.40
  4. Step 4: Simplify right side
    3,410.40x = 8,606,485.44
  5. Step 5: Solve for x
    x = 8,606,485.44/3,410.40
  6. Step 6: Final answer
    x = 2,523.60

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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.