Home / 5,555.73-8,329.67-2,780.42

Finding the Fourth Proportional to 5,555.73, 8,329.67 and 2,780.42

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Solution

The fourth proportional to 5,555.73, 8,329.67 and 2,780.42 is: 4,168.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,555.73 : 8,329.67 = 2,780.42 : x
  2. Step 2: Convert to fraction form
    5,555.73/8,329.67 = 2,780.42/x
  3. Step 3: Cross multiply
    5,555.73x = 8,329.67 × 2,780.42
  4. Step 4: Simplify right side
    5,555.73x = 23,159,935.94
  5. Step 5: Solve for x
    x = 23,159,935.94/5,555.73
  6. Step 6: Final answer
    x = 4,168.65

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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.