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Finding the Fourth Proportional to 2,175.60, 3,263.44 and 636.56

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Solution

The fourth proportional to 2,175.60, 3,263.44 and 636.56 is: 954.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.60 : 3,263.44 = 636.56 : x
  2. Step 2: Convert to fraction form
    2,175.60/3,263.44 = 636.56/x
  3. Step 3: Cross multiply
    2,175.60x = 3,263.44 × 636.56
  4. Step 4: Simplify right side
    2,175.60x = 2,077,375.37
  5. Step 5: Solve for x
    x = 2,077,375.37/2,175.60
  6. Step 6: Final answer
    x = 954.85

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1.5x scale

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.