Home / 1,940.12-2,908.74-966.92

Finding the Fourth Proportional to 1,940.12, 2,908.74 and 966.92

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Solution

The fourth proportional to 1,940.12, 2,908.74 and 966.92 is: 1,449.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940.12 : 2,908.74 = 966.92 : x
  2. Step 2: Convert to fraction form
    1,940.12/2,908.74 = 966.92/x
  3. Step 3: Cross multiply
    1,940.12x = 2,908.74 × 966.92
  4. Step 4: Simplify right side
    1,940.12x = 2,812,518.88
  5. Step 5: Solve for x
    x = 2,812,518.88/1,940.12
  6. Step 6: Final answer
    x = 1,449.66

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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.