Home / 5,425.68-7,485.60-3,067.20

Finding the Fourth Proportional to 5,425.68, 7,485.60 and 3,067.20

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Solution

The fourth proportional to 5,425.68, 7,485.60 and 3,067.20 is: 4,231.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.68 : 7,485.60 = 3,067.20 : x
  2. Step 2: Convert to fraction form
    5,425.68/7,485.60 = 3,067.20/x
  3. Step 3: Cross multiply
    5,425.68x = 7,485.60 × 3,067.20
  4. Step 4: Simplify right side
    5,425.68x = 22,959,832.32
  5. Step 5: Solve for x
    x = 22,959,832.32/5,425.68
  6. Step 6: Final answer
    x = 4,231.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.