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Finding the Fourth Proportional to 2,306.12, 3,458.80 and 662.30

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Solution

The fourth proportional to 2,306.12, 3,458.80 and 662.30 is: 993.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,306.12 : 3,458.80 = 662.30 : x
  2. Step 2: Convert to fraction form
    2,306.12/3,458.80 = 662.30/x
  3. Step 3: Cross multiply
    2,306.12x = 3,458.80 × 662.30
  4. Step 4: Simplify right side
    2,306.12x = 2,290,769.47
  5. Step 5: Solve for x
    x = 2,290,769.47/2,306.12
  6. Step 6: Final answer
    x = 993.34

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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.