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Finding the Fourth Proportional to 34.84, 51.98 and 34.30

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Solution

The fourth proportional to 34.84, 51.98 and 34.30 is: 51.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    34.84 : 51.98 = 34.30 : x
  2. Step 2: Convert to fraction form
    34.84/51.98 = 34.30/x
  3. Step 3: Cross multiply
    34.84x = 51.98 × 34.30
  4. Step 4: Simplify right side
    34.84x = 1,782.91
  5. Step 5: Solve for x
    x = 1,782.91/34.84
  6. Step 6: Final answer
    x = 51.17

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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.