Home / 5,243.56-7,234.50-3,145.48

Finding the Fourth Proportional to 5,243.56, 7,234.50 and 3,145.48

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Solution

The fourth proportional to 5,243.56, 7,234.50 and 3,145.48 is: 4,339.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.56 : 7,234.50 = 3,145.48 : x
  2. Step 2: Convert to fraction form
    5,243.56/7,234.50 = 3,145.48/x
  3. Step 3: Cross multiply
    5,243.56x = 7,234.50 × 3,145.48
  4. Step 4: Simplify right side
    5,243.56x = 22,755,975.06
  5. Step 5: Solve for x
    x = 22,755,975.06/5,243.56
  6. Step 6: Final answer
    x = 4,339.79

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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.