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Finding the Fourth Proportional to 7,270.77, 10,910.93 and 3,986.19

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Solution

The fourth proportional to 7,270.77, 10,910.93 and 3,986.19 is: 5,981.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,270.77 : 10,910.93 = 3,986.19 : x
  2. Step 2: Convert to fraction form
    7,270.77/10,910.93 = 3,986.19/x
  3. Step 3: Cross multiply
    7,270.77x = 10,910.93 × 3,986.19
  4. Step 4: Simplify right side
    7,270.77x = 43,493,040.06
  5. Step 5: Solve for x
    x = 43,493,040.06/7,270.77
  6. Step 6: Final answer
    x = 5,981.90

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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.