Home / 7,183.12-10,765.87-3,430.60

Finding the Fourth Proportional to 7,183.12, 10,765.87 and 3,430.60

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Solution

The fourth proportional to 7,183.12, 10,765.87 and 3,430.60 is: 5,141.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,183.12 : 10,765.87 = 3,430.60 : x
  2. Step 2: Convert to fraction form
    7,183.12/10,765.87 = 3,430.60/x
  3. Step 3: Cross multiply
    7,183.12x = 10,765.87 × 3,430.60
  4. Step 4: Simplify right side
    7,183.12x = 36,933,393.62
  5. Step 5: Solve for x
    x = 36,933,393.62/7,183.12
  6. Step 6: Final answer
    x = 5,141.69

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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.