Home / 2,634.24-3,944.88-2,120.16

Finding the Fourth Proportional to 2,634.24, 3,944.88 and 2,120.16

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Solution

The fourth proportional to 2,634.24, 3,944.88 and 2,120.16 is: 3,175.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,634.24 : 3,944.88 = 2,120.16 : x
  2. Step 2: Convert to fraction form
    2,634.24/3,944.88 = 2,120.16/x
  3. Step 3: Cross multiply
    2,634.24x = 3,944.88 × 2,120.16
  4. Step 4: Simplify right side
    2,634.24x = 8,363,776.78
  5. Step 5: Solve for x
    x = 8,363,776.78/2,634.24
  6. Step 6: Final answer
    x = 3,175.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.