Home / 5,221.71-7,826.09-2,625.39

Finding the Fourth Proportional to 5,221.71, 7,826.09 and 2,625.39

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Solution

The fourth proportional to 5,221.71, 7,826.09 and 2,625.39 is: 3,934.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.71 : 7,826.09 = 2,625.39 : x
  2. Step 2: Convert to fraction form
    5,221.71/7,826.09 = 2,625.39/x
  3. Step 3: Cross multiply
    5,221.71x = 7,826.09 × 2,625.39
  4. Step 4: Simplify right side
    5,221.71x = 20,546,525.30
  5. Step 5: Solve for x
    x = 20,546,525.30/5,221.71
  6. Step 6: Final answer
    x = 3,934.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.