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Finding the Fourth Proportional to 3,073.58, 4,610.37 and 765.08

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Solution

The fourth proportional to 3,073.58, 4,610.37 and 765.08 is: 1,147.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,073.58 : 4,610.37 = 765.08 : x
  2. Step 2: Convert to fraction form
    3,073.58/4,610.37 = 765.08/x
  3. Step 3: Cross multiply
    3,073.58x = 4,610.37 × 765.08
  4. Step 4: Simplify right side
    3,073.58x = 3,527,294.68
  5. Step 5: Solve for x
    x = 3,527,294.68/3,073.58
  6. Step 6: Final answer
    x = 1,147.62

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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.