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Finding the Fourth Proportional to 35.79, 53.39 and 34.26

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Solution

The fourth proportional to 35.79, 53.39 and 34.26 is: 51.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.79 : 53.39 = 34.26 : x
  2. Step 2: Convert to fraction form
    35.79/53.39 = 34.26/x
  3. Step 3: Cross multiply
    35.79x = 53.39 × 34.26
  4. Step 4: Simplify right side
    35.79x = 1,829.14
  5. Step 5: Solve for x
    x = 1,829.14/35.79
  6. Step 6: Final answer
    x = 51.11

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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.