Home / 2,890.45-4,329.19-2,239.21

Finding the Fourth Proportional to 2,890.45, 4,329.19 and 2,239.21

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Solution

The fourth proportional to 2,890.45, 4,329.19 and 2,239.21 is: 3,353.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890.45 : 4,329.19 = 2,239.21 : x
  2. Step 2: Convert to fraction form
    2,890.45/4,329.19 = 2,239.21/x
  3. Step 3: Cross multiply
    2,890.45x = 4,329.19 × 2,239.21
  4. Step 4: Simplify right side
    2,890.45x = 9,693,965.54
  5. Step 5: Solve for x
    x = 9,693,965.54/2,890.45
  6. Step 6: Final answer
    x = 3,353.79

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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.