Home / 1,951.29-2,926.62-911.25

Finding the Fourth Proportional to 1,951.29, 2,926.62 and 911.25

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Solution

The fourth proportional to 1,951.29, 2,926.62 and 911.25 is: 1,366.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,951.29 : 2,926.62 = 911.25 : x
  2. Step 2: Convert to fraction form
    1,951.29/2,926.62 = 911.25/x
  3. Step 3: Cross multiply
    1,951.29x = 2,926.62 × 911.25
  4. Step 4: Simplify right side
    1,951.29x = 2,666,882.48
  5. Step 5: Solve for x
    x = 2,666,882.48/1,951.29
  6. Step 6: Final answer
    x = 1,366.73

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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.