Home / 2,920.44-4,382.76-2,191.98

Finding the Fourth Proportional to 2,920.44, 4,382.76 and 2,191.98

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Solution

The fourth proportional to 2,920.44, 4,382.76 and 2,191.98 is: 3,289.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.44 : 4,382.76 = 2,191.98 : x
  2. Step 2: Convert to fraction form
    2,920.44/4,382.76 = 2,191.98/x
  3. Step 3: Cross multiply
    2,920.44x = 4,382.76 × 2,191.98
  4. Step 4: Simplify right side
    2,920.44x = 9,606,922.26
  5. Step 5: Solve for x
    x = 9,606,922.26/2,920.44
  6. Step 6: Final answer
    x = 3,289.55

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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.