Home / 2,975.76-4,105.96-1,796.90

Finding the Fourth Proportional to 2,975.76, 4,105.96 and 1,796.90

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Solution

The fourth proportional to 2,975.76, 4,105.96 and 1,796.90 is: 2,479.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,975.76 : 4,105.96 = 1,796.90 : x
  2. Step 2: Convert to fraction form
    2,975.76/4,105.96 = 1,796.90/x
  3. Step 3: Cross multiply
    2,975.76x = 4,105.96 × 1,796.90
  4. Step 4: Simplify right side
    2,975.76x = 7,377,974.50
  5. Step 5: Solve for x
    x = 7,377,974.50/2,975.76
  6. Step 6: Final answer
    x = 2,479.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.