Home / 2,863.96-3,951.36-1,685.44

Finding the Fourth Proportional to 2,863.96, 3,951.36 and 1,685.44

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Solution

The fourth proportional to 2,863.96, 3,951.36 and 1,685.44 is: 2,325.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,863.96 : 3,951.36 = 1,685.44 : x
  2. Step 2: Convert to fraction form
    2,863.96/3,951.36 = 1,685.44/x
  3. Step 3: Cross multiply
    2,863.96x = 3,951.36 × 1,685.44
  4. Step 4: Simplify right side
    2,863.96x = 6,659,780.20
  5. Step 5: Solve for x
    x = 6,659,780.20/2,863.96
  6. Step 6: Final answer
    x = 2,325.37

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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.