Home / 7,221.12-10,824-3,063.36

Finding the Fourth Proportional to 7,221.12, 10,824 and 3,063.36

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Solution

The fourth proportional to 7,221.12, 10,824 and 3,063.36 is: 4,591.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.12 : 10,824 = 3,063.36 : x
  2. Step 2: Convert to fraction form
    7,221.12/10,824 = 3,063.36/x
  3. Step 3: Cross multiply
    7,221.12x = 10,824 × 3,063.36
  4. Step 4: Simplify right side
    7,221.12x = 33,157,808.64
  5. Step 5: Solve for x
    x = 33,157,808.64/7,221.12
  6. Step 6: Final answer
    x = 4,591.78

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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.