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Finding the Fourth Proportional to 34.68, 52.10 and 26.20

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Solution

The fourth proportional to 34.68, 52.10 and 26.20 is: 39.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    34.68 : 52.10 = 26.20 : x
  2. Step 2: Convert to fraction form
    34.68/52.10 = 26.20/x
  3. Step 3: Cross multiply
    34.68x = 52.10 × 26.20
  4. Step 4: Simplify right side
    34.68x = 1,365.02
  5. Step 5: Solve for x
    x = 1,365.02/34.68
  6. Step 6: Final answer
    x = 39.36

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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.