Home / 5,221.17-7,205.22-2,863.37

Finding the Fourth Proportional to 5,221.17, 7,205.22 and 2,863.37

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Solution

The fourth proportional to 5,221.17, 7,205.22 and 2,863.37 is: 3,951.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.17 : 7,205.22 = 2,863.37 : x
  2. Step 2: Convert to fraction form
    5,221.17/7,205.22 = 2,863.37/x
  3. Step 3: Cross multiply
    5,221.17x = 7,205.22 × 2,863.37
  4. Step 4: Simplify right side
    5,221.17x = 20,631,174.77
  5. Step 5: Solve for x
    x = 20,631,174.77/5,221.17
  6. Step 6: Final answer
    x = 3,951.45

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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.