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Finding the Fourth Proportional to 6,956.71, 10,433.21 and 1,958.78

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Solution

The fourth proportional to 6,956.71, 10,433.21 and 1,958.78 is: 2,937.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,956.71 : 10,433.21 = 1,958.78 : x
  2. Step 2: Convert to fraction form
    6,956.71/10,433.21 = 1,958.78/x
  3. Step 3: Cross multiply
    6,956.71x = 10,433.21 × 1,958.78
  4. Step 4: Simplify right side
    6,956.71x = 20,436,379.37
  5. Step 5: Solve for x
    x = 20,436,379.37/6,956.71
  6. Step 6: Final answer
    x = 2,937.65

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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.