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Finding the Fourth Proportional to 34.09, 51.14 and 28.07

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Solution

The fourth proportional to 34.09, 51.14 and 28.07 is: 42.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    34.09 : 51.14 = 28.07 : x
  2. Step 2: Convert to fraction form
    34.09/51.14 = 28.07/x
  3. Step 3: Cross multiply
    34.09x = 51.14 × 28.07
  4. Step 4: Simplify right side
    34.09x = 1,435.40
  5. Step 5: Solve for x
    x = 1,435.40/34.09
  6. Step 6: Final answer
    x = 42.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.