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Finding the Fourth Proportional to 4.84, 7.27 and 3.15

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Solution

The fourth proportional to 4.84, 7.27 and 3.15 is: 4.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.84 : 7.27 = 3.15 : x
  2. Step 2: Convert to fraction form
    4.84/7.27 = 3.15/x
  3. Step 3: Cross multiply
    4.84x = 7.27 × 3.15
  4. Step 4: Simplify right side
    4.84x = 22.91
  5. Step 5: Solve for x
    x = 22.91/4.84
  6. Step 6: Final answer
    x = 4.73

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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.