Home / 7,540.39-10,405.79-4,183.27

Finding the Fourth Proportional to 7,540.39, 10,405.79 and 4,183.27

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Solution

The fourth proportional to 7,540.39, 10,405.79 and 4,183.27 is: 5,772.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,540.39 : 10,405.79 = 4,183.27 : x
  2. Step 2: Convert to fraction form
    7,540.39/10,405.79 = 4,183.27/x
  3. Step 3: Cross multiply
    7,540.39x = 10,405.79 × 4,183.27
  4. Step 4: Simplify right side
    7,540.39x = 43,530,182.20
  5. Step 5: Solve for x
    x = 43,530,182.20/7,540.39
  6. Step 6: Final answer
    x = 5,772.94

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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.