Home / 3,425.20-5,137.80-3,403.60

Finding the Fourth Proportional to 3,425.20, 5,137.80 and 3,403.60

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Solution

The fourth proportional to 3,425.20, 5,137.80 and 3,403.60 is: 5,105.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,425.20 : 5,137.80 = 3,403.60 : x
  2. Step 2: Convert to fraction form
    3,425.20/5,137.80 = 3,403.60/x
  3. Step 3: Cross multiply
    3,425.20x = 5,137.80 × 3,403.60
  4. Step 4: Simplify right side
    3,425.20x = 17,487,016.08
  5. Step 5: Solve for x
    x = 17,487,016.08/3,425.20
  6. Step 6: Final answer
    x = 5,105.40

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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.