Home / 5,105.48-7,645.88-2,907.56

Finding the Fourth Proportional to 5,105.48, 7,645.88 and 2,907.56

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Solution

The fourth proportional to 5,105.48, 7,645.88 and 2,907.56 is: 4,354.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,105.48 : 7,645.88 = 2,907.56 : x
  2. Step 2: Convert to fraction form
    5,105.48/7,645.88 = 2,907.56/x
  3. Step 3: Cross multiply
    5,105.48x = 7,645.88 × 2,907.56
  4. Step 4: Simplify right side
    5,105.48x = 22,230,854.85
  5. Step 5: Solve for x
    x = 22,230,854.85/5,105.48
  6. Step 6: Final answer
    x = 4,354.31

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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.