Home / 2,116.70-3,175.65-636.04

Finding the Fourth Proportional to 2,116.70, 3,175.65 and 636.04

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Solution

The fourth proportional to 2,116.70, 3,175.65 and 636.04 is: 954.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.70 : 3,175.65 = 636.04 : x
  2. Step 2: Convert to fraction form
    2,116.70/3,175.65 = 636.04/x
  3. Step 3: Cross multiply
    2,116.70x = 3,175.65 × 636.04
  4. Step 4: Simplify right side
    2,116.70x = 2,019,844.40
  5. Step 5: Solve for x
    x = 2,019,844.40/2,116.70
  6. Step 6: Final answer
    x = 954.24

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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.