Home / 2,863.62-3,951.90-1,685.34

Finding the Fourth Proportional to 2,863.62, 3,951.90 and 1,685.34

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Solution

The fourth proportional to 2,863.62, 3,951.90 and 1,685.34 is: 2,325.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,863.62 : 3,951.90 = 1,685.34 : x
  2. Step 2: Convert to fraction form
    2,863.62/3,951.90 = 1,685.34/x
  3. Step 3: Cross multiply
    2,863.62x = 3,951.90 × 1,685.34
  4. Step 4: Simplify right side
    2,863.62x = 6,660,295.15
  5. Step 5: Solve for x
    x = 6,660,295.15/2,863.62
  6. Step 6: Final answer
    x = 2,325.83

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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.