Home / 3,115.23-4,673.82-923.97

Finding the Fourth Proportional to 3,115.23, 4,673.82 and 923.97

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Solution

The fourth proportional to 3,115.23, 4,673.82 and 923.97 is: 1,386.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.23 : 4,673.82 = 923.97 : x
  2. Step 2: Convert to fraction form
    3,115.23/4,673.82 = 923.97/x
  3. Step 3: Cross multiply
    3,115.23x = 4,673.82 × 923.97
  4. Step 4: Simplify right side
    3,115.23x = 4,318,469.47
  5. Step 5: Solve for x
    x = 4,318,469.47/3,115.23
  6. Step 6: Final answer
    x = 1,386.24

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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.