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Finding the Fourth Proportional to 2,137.05, 3,203.64 and 838.17

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Solution

The fourth proportional to 2,137.05, 3,203.64 and 838.17 is: 1,256.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,137.05 : 3,203.64 = 838.17 : x
  2. Step 2: Convert to fraction form
    2,137.05/3,203.64 = 838.17/x
  3. Step 3: Cross multiply
    2,137.05x = 3,203.64 × 838.17
  4. Step 4: Simplify right side
    2,137.05x = 2,685,194.94
  5. Step 5: Solve for x
    x = 2,685,194.94/2,137.05
  6. Step 6: Final answer
    x = 1,256.50

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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.