Home / 3,382.90-4,668.30-1,890.81

Finding the Fourth Proportional to 3,382.90, 4,668.30 and 1,890.81

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Solution

The fourth proportional to 3,382.90, 4,668.30 and 1,890.81 is: 2,609.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,382.90 : 4,668.30 = 1,890.81 : x
  2. Step 2: Convert to fraction form
    3,382.90/4,668.30 = 1,890.81/x
  3. Step 3: Cross multiply
    3,382.90x = 4,668.30 × 1,890.81
  4. Step 4: Simplify right side
    3,382.90x = 8,826,868.32
  5. Step 5: Solve for x
    x = 8,826,868.32/3,382.90
  6. Step 6: Final answer
    x = 2,609.26

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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.