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Finding the Fourth Proportional to 1,540.58, 2,311.09 and 566.60

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Solution

The fourth proportional to 1,540.58, 2,311.09 and 566.60 is: 849.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540.58 : 2,311.09 = 566.60 : x
  2. Step 2: Convert to fraction form
    1,540.58/2,311.09 = 566.60/x
  3. Step 3: Cross multiply
    1,540.58x = 2,311.09 × 566.60
  4. Step 4: Simplify right side
    1,540.58x = 1,309,450.62
  5. Step 5: Solve for x
    x = 1,309,450.62/1,540.58
  6. Step 6: Final answer
    x = 849.98

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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.