Home / 2,863.20-3,951.24-1,604.16

Finding the Fourth Proportional to 2,863.20, 3,951.24 and 1,604.16

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Solution

The fourth proportional to 2,863.20, 3,951.24 and 1,604.16 is: 2,213.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,863.20 : 3,951.24 = 1,604.16 : x
  2. Step 2: Convert to fraction form
    2,863.20/3,951.24 = 1,604.16/x
  3. Step 3: Cross multiply
    2,863.20x = 3,951.24 × 1,604.16
  4. Step 4: Simplify right side
    2,863.20x = 6,338,421.16
  5. Step 5: Solve for x
    x = 6,338,421.16/2,863.20
  6. Step 6: Final answer
    x = 2,213.75

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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.