Home / 7,770.28-11,657.26-3,388.52

Finding the Fourth Proportional to 7,770.28, 11,657.26 and 3,388.52

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Solution

The fourth proportional to 7,770.28, 11,657.26 and 3,388.52 is: 5,083.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,770.28 : 11,657.26 = 3,388.52 : x
  2. Step 2: Convert to fraction form
    7,770.28/11,657.26 = 3,388.52/x
  3. Step 3: Cross multiply
    7,770.28x = 11,657.26 × 3,388.52
  4. Step 4: Simplify right side
    7,770.28x = 39,500,858.66
  5. Step 5: Solve for x
    x = 39,500,858.66/7,770.28
  6. Step 6: Final answer
    x = 5,083.58

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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.