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Finding the Fourth Proportional to 4.95, 7.39 and 4.25

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Solution

The fourth proportional to 4.95, 7.39 and 4.25 is: 6.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.95 : 7.39 = 4.25 : x
  2. Step 2: Convert to fraction form
    4.95/7.39 = 4.25/x
  3. Step 3: Cross multiply
    4.95x = 7.39 × 4.25
  4. Step 4: Simplify right side
    4.95x = 31.35
  5. Step 5: Solve for x
    x = 31.35/4.95
  6. Step 6: Final answer
    x = 6.33

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Find fourth proportional to 2.48, 3.69 and 2.12
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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.