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Finding the Fourth Proportional to 35.48, 52.98 and 30.62

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Solution

The fourth proportional to 35.48, 52.98 and 30.62 is: 45.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.48 : 52.98 = 30.62 : x
  2. Step 2: Convert to fraction form
    35.48/52.98 = 30.62/x
  3. Step 3: Cross multiply
    35.48x = 52.98 × 30.62
  4. Step 4: Simplify right side
    35.48x = 1,622.25
  5. Step 5: Solve for x
    x = 1,622.25/35.48
  6. Step 6: Final answer
    x = 45.72

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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.