Home / 7,281.88-10,922.81-2,087.75

Finding the Fourth Proportional to 7,281.88, 10,922.81 and 2,087.75

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Solution

The fourth proportional to 7,281.88, 10,922.81 and 2,087.75 is: 3,131.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,281.88 : 10,922.81 = 2,087.75 : x
  2. Step 2: Convert to fraction form
    7,281.88/10,922.81 = 2,087.75/x
  3. Step 3: Cross multiply
    7,281.88x = 10,922.81 × 2,087.75
  4. Step 4: Simplify right side
    7,281.88x = 22,804,096.58
  5. Step 5: Solve for x
    x = 22,804,096.58/7,281.88
  6. Step 6: Final answer
    x = 3,131.62

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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.