Home / 3,382.80-4,668.44-1,890.76

Finding the Fourth Proportional to 3,382.80, 4,668.44 and 1,890.76

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Solution

The fourth proportional to 3,382.80, 4,668.44 and 1,890.76 is: 2,609.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,382.80 : 4,668.44 = 1,890.76 : x
  2. Step 2: Convert to fraction form
    3,382.80/4,668.44 = 1,890.76/x
  3. Step 3: Cross multiply
    3,382.80x = 4,668.44 × 1,890.76
  4. Step 4: Simplify right side
    3,382.80x = 8,826,899.61
  5. Step 5: Solve for x
    x = 8,826,899.61/3,382.80
  6. Step 6: Final answer
    x = 2,609.35

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Double scale
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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.