Home / 2,116.63-3,175.59-635.90

Finding the Fourth Proportional to 2,116.63, 3,175.59 and 635.90

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Solution

The fourth proportional to 2,116.63, 3,175.59 and 635.90 is: 954.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.63 : 3,175.59 = 635.90 : x
  2. Step 2: Convert to fraction form
    2,116.63/3,175.59 = 635.90/x
  3. Step 3: Cross multiply
    2,116.63x = 3,175.59 × 635.90
  4. Step 4: Simplify right side
    2,116.63x = 2,019,357.68
  5. Step 5: Solve for x
    x = 2,019,357.68/2,116.63
  6. Step 6: Final answer
    x = 954.04

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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.