Home / 1,940.36-2,910.80-966.36

Finding the Fourth Proportional to 1,940.36, 2,910.80 and 966.36

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Solution

The fourth proportional to 1,940.36, 2,910.80 and 966.36 is: 1,449.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940.36 : 2,910.80 = 966.36 : x
  2. Step 2: Convert to fraction form
    1,940.36/2,910.80 = 966.36/x
  3. Step 3: Cross multiply
    1,940.36x = 2,910.80 × 966.36
  4. Step 4: Simplify right side
    1,940.36x = 2,812,880.69
  5. Step 5: Solve for x
    x = 2,812,880.69/1,940.36
  6. Step 6: Final answer
    x = 1,449.67

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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.