Home / 5,419.23-7,481.76-3,431.49

Finding the Fourth Proportional to 5,419.23, 7,481.76 and 3,431.49

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Solution

The fourth proportional to 5,419.23, 7,481.76 and 3,431.49 is: 4,737.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.23 : 7,481.76 = 3,431.49 : x
  2. Step 2: Convert to fraction form
    5,419.23/7,481.76 = 3,431.49/x
  3. Step 3: Cross multiply
    5,419.23x = 7,481.76 × 3,431.49
  4. Step 4: Simplify right side
    5,419.23x = 25,673,584.62
  5. Step 5: Solve for x
    x = 25,673,584.62/5,419.23
  6. Step 6: Final answer
    x = 4,737.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.