Home / 5,388.23-7,436.05-3,149.79

Finding the Fourth Proportional to 5,388.23, 7,436.05 and 3,149.79

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Solution

The fourth proportional to 5,388.23, 7,436.05 and 3,149.79 is: 4,346.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.23 : 7,436.05 = 3,149.79 : x
  2. Step 2: Convert to fraction form
    5,388.23/7,436.05 = 3,149.79/x
  3. Step 3: Cross multiply
    5,388.23x = 7,436.05 × 3,149.79
  4. Step 4: Simplify right side
    5,388.23x = 23,421,995.93
  5. Step 5: Solve for x
    x = 23,421,995.93/5,388.23
  6. Step 6: Final answer
    x = 4,346.88

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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.