Home / 3,382.89-4,668.38-1,890.81

Finding the Fourth Proportional to 3,382.89, 4,668.38 and 1,890.81

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Solution

The fourth proportional to 3,382.89, 4,668.38 and 1,890.81 is: 2,609.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,382.89 : 4,668.38 = 1,890.81 : x
  2. Step 2: Convert to fraction form
    3,382.89/4,668.38 = 1,890.81/x
  3. Step 3: Cross multiply
    3,382.89x = 4,668.38 × 1,890.81
  4. Step 4: Simplify right side
    3,382.89x = 8,826,996.25
  5. Step 5: Solve for x
    x = 8,826,996.25/3,382.89
  6. Step 6: Final answer
    x = 2,609.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.