Home / 3,119.23-4,679.82-927.97

Finding the Fourth Proportional to 3,119.23, 4,679.82 and 927.97

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Solution

The fourth proportional to 3,119.23, 4,679.82 and 927.97 is: 1,392.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.23 : 4,679.82 = 927.97 : x
  2. Step 2: Convert to fraction form
    3,119.23/4,679.82 = 927.97/x
  3. Step 3: Cross multiply
    3,119.23x = 4,679.82 × 927.97
  4. Step 4: Simplify right side
    3,119.23x = 4,342,732.57
  5. Step 5: Solve for x
    x = 4,342,732.57/3,119.23
  6. Step 6: Final answer
    x = 1,392.25

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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.