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Finding the Fourth Proportional to 7,243.62, 10,865.43 and 3,954.92

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Solution

The fourth proportional to 7,243.62, 10,865.43 and 3,954.92 is: 5,932.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,243.62 : 10,865.43 = 3,954.92 : x
  2. Step 2: Convert to fraction form
    7,243.62/10,865.43 = 3,954.92/x
  3. Step 3: Cross multiply
    7,243.62x = 10,865.43 × 3,954.92
  4. Step 4: Simplify right side
    7,243.62x = 42,971,852.09
  5. Step 5: Solve for x
    x = 42,971,852.09/7,243.62
  6. Step 6: Final answer
    x = 5,932.37

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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.