Home / 7,213.46-10,821.09-2,281.31

Finding the Fourth Proportional to 7,213.46, 10,821.09 and 2,281.31

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Solution

The fourth proportional to 7,213.46, 10,821.09 and 2,281.31 is: 3,422.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.46 : 10,821.09 = 2,281.31 : x
  2. Step 2: Convert to fraction form
    7,213.46/10,821.09 = 2,281.31/x
  3. Step 3: Cross multiply
    7,213.46x = 10,821.09 × 2,281.31
  4. Step 4: Simplify right side
    7,213.46x = 24,686,316.73
  5. Step 5: Solve for x
    x = 24,686,316.73/7,213.46
  6. Step 6: Final answer
    x = 3,422.26

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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.