Home / 5,481.48-7,574.46-3,906.84

Finding the Fourth Proportional to 5,481.48, 7,574.46 and 3,906.84

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Solution

The fourth proportional to 5,481.48, 7,574.46 and 3,906.84 is: 5,398.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.48 : 7,574.46 = 3,906.84 : x
  2. Step 2: Convert to fraction form
    5,481.48/7,574.46 = 3,906.84/x
  3. Step 3: Cross multiply
    5,481.48x = 7,574.46 × 3,906.84
  4. Step 4: Simplify right side
    5,481.48x = 29,592,203.31
  5. Step 5: Solve for x
    x = 29,592,203.31/5,481.48
  6. Step 6: Final answer
    x = 5,398.58

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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.