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Finding the Fourth Proportional to 8.33, 12.49 and 2.99

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Solution

The fourth proportional to 8.33, 12.49 and 2.99 is: 4.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8.33 : 12.49 = 2.99 : x
  2. Step 2: Convert to fraction form
    8.33/12.49 = 2.99/x
  3. Step 3: Cross multiply
    8.33x = 12.49 × 2.99
  4. Step 4: Simplify right side
    8.33x = 37.28
  5. Step 5: Solve for x
    x = 37.28/8.33
  6. Step 6: Final answer
    x = 4.48

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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.