Home / 5,231.32-7,220.54-3,240.69

Finding the Fourth Proportional to 5,231.32, 7,220.54 and 3,240.69

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Solution

The fourth proportional to 5,231.32, 7,220.54 and 3,240.69 is: 4,472.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.32 : 7,220.54 = 3,240.69 : x
  2. Step 2: Convert to fraction form
    5,231.32/7,220.54 = 3,240.69/x
  3. Step 3: Cross multiply
    5,231.32x = 7,220.54 × 3,240.69
  4. Step 4: Simplify right side
    5,231.32x = 23,399,512.80
  5. Step 5: Solve for x
    x = 23,399,512.80/5,231.32
  6. Step 6: Final answer
    x = 4,472.97

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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.