Home / 2,863.38-3,951.66-1,668.72

Finding the Fourth Proportional to 2,863.38, 3,951.66 and 1,668.72

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Solution

The fourth proportional to 2,863.38, 3,951.66 and 1,668.72 is: 2,302.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,863.38 : 3,951.66 = 1,668.72 : x
  2. Step 2: Convert to fraction form
    2,863.38/3,951.66 = 1,668.72/x
  3. Step 3: Cross multiply
    2,863.38x = 3,951.66 × 1,668.72
  4. Step 4: Simplify right side
    2,863.38x = 6,594,214.08
  5. Step 5: Solve for x
    x = 6,594,214.08/2,863.38
  6. Step 6: Final answer
    x = 2,302.95

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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.