Home / 7,722.73-11,574.98-2,788.62

Finding the Fourth Proportional to 7,722.73, 11,574.98 and 2,788.62

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Solution

The fourth proportional to 7,722.73, 11,574.98 and 2,788.62 is: 4,179.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,722.73 : 11,574.98 = 2,788.62 : x
  2. Step 2: Convert to fraction form
    7,722.73/11,574.98 = 2,788.62/x
  3. Step 3: Cross multiply
    7,722.73x = 11,574.98 × 2,788.62
  4. Step 4: Simplify right side
    7,722.73x = 32,278,220.73
  5. Step 5: Solve for x
    x = 32,278,220.73/7,722.73
  6. Step 6: Final answer
    x = 4,179.64

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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.