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Finding the Fourth Proportional to 25.46, 34.87 and 25.19

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Solution

The fourth proportional to 25.46, 34.87 and 25.19 is: 34.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.46 : 34.87 = 25.19 : x
  2. Step 2: Convert to fraction form
    25.46/34.87 = 25.19/x
  3. Step 3: Cross multiply
    25.46x = 34.87 × 25.19
  4. Step 4: Simplify right side
    25.46x = 878.38
  5. Step 5: Solve for x
    x = 878.38/25.46
  6. Step 6: Final answer
    x = 34.50

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.