Home / 7,222.12-10,829.82-2,836.36

Finding the Fourth Proportional to 7,222.12, 10,829.82 and 2,836.36

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Solution

The fourth proportional to 7,222.12, 10,829.82 and 2,836.36 is: 4,253.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,222.12 : 10,829.82 = 2,836.36 : x
  2. Step 2: Convert to fraction form
    7,222.12/10,829.82 = 2,836.36/x
  3. Step 3: Cross multiply
    7,222.12x = 10,829.82 × 2,836.36
  4. Step 4: Simplify right side
    7,222.12x = 30,717,268.26
  5. Step 5: Solve for x
    x = 30,717,268.26/7,222.12
  6. Step 6: Final answer
    x = 4,253.22

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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.