Home / 7,691.34-11,540.45-3,740.43

Finding the Fourth Proportional to 7,691.34, 11,540.45 and 3,740.43

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Solution

The fourth proportional to 7,691.34, 11,540.45 and 3,740.43 is: 5,612.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,691.34 : 11,540.45 = 3,740.43 : x
  2. Step 2: Convert to fraction form
    7,691.34/11,540.45 = 3,740.43/x
  3. Step 3: Cross multiply
    7,691.34x = 11,540.45 × 3,740.43
  4. Step 4: Simplify right side
    7,691.34x = 43,166,245.39
  5. Step 5: Solve for x
    x = 43,166,245.39/7,691.34
  6. Step 6: Final answer
    x = 5,612.32

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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.