Home / 7,240.15-10,861.82-4,121.62

Finding the Fourth Proportional to 7,240.15, 10,861.82 and 4,121.62

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Solution

The fourth proportional to 7,240.15, 10,861.82 and 4,121.62 is: 6,183.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240.15 : 10,861.82 = 4,121.62 : x
  2. Step 2: Convert to fraction form
    7,240.15/10,861.82 = 4,121.62/x
  3. Step 3: Cross multiply
    7,240.15x = 10,861.82 × 4,121.62
  4. Step 4: Simplify right side
    7,240.15x = 44,768,262.24
  5. Step 5: Solve for x
    x = 44,768,262.24/7,240.15
  6. Step 6: Final answer
    x = 6,183.33

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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.