Home / 5,221.36-7,205.46-2,863.50

Finding the Fourth Proportional to 5,221.36, 7,205.46 and 2,863.50

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Solution

The fourth proportional to 5,221.36, 7,205.46 and 2,863.50 is: 3,951.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.36 : 7,205.46 = 2,863.50 : x
  2. Step 2: Convert to fraction form
    5,221.36/7,205.46 = 2,863.50/x
  3. Step 3: Cross multiply
    5,221.36x = 7,205.46 × 2,863.50
  4. Step 4: Simplify right side
    5,221.36x = 20,632,837.48
  5. Step 5: Solve for x
    x = 20,632,837.48/5,221.36
  6. Step 6: Final answer
    x = 3,951.62

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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.