Home / 2,175.44-3,263.40-636.56

Finding the Fourth Proportional to 2,175.44, 3,263.40 and 636.56

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Solution

The fourth proportional to 2,175.44, 3,263.40 and 636.56 is: 954.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.44 : 3,263.40 = 636.56 : x
  2. Step 2: Convert to fraction form
    2,175.44/3,263.40 = 636.56/x
  3. Step 3: Cross multiply
    2,175.44x = 3,263.40 × 636.56
  4. Step 4: Simplify right side
    2,175.44x = 2,077,349.90
  5. Step 5: Solve for x
    x = 2,077,349.90/2,175.44
  6. Step 6: Final answer
    x = 954.91

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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.