Home / 7,221.17-10,814.45-3,926.09

Finding the Fourth Proportional to 7,221.17, 10,814.45 and 3,926.09

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Solution

The fourth proportional to 7,221.17, 10,814.45 and 3,926.09 is: 5,879.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.17 : 10,814.45 = 3,926.09 : x
  2. Step 2: Convert to fraction form
    7,221.17/10,814.45 = 3,926.09/x
  3. Step 3: Cross multiply
    7,221.17x = 10,814.45 × 3,926.09
  4. Step 4: Simplify right side
    7,221.17x = 42,458,511.41
  5. Step 5: Solve for x
    x = 42,458,511.41/7,221.17
  6. Step 6: Final answer
    x = 5,879.73

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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.