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Finding the Fourth Proportional to 2,166.64, 3,248.88 and 996.28

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Solution

The fourth proportional to 2,166.64, 3,248.88 and 996.28 is: 1,493.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166.64 : 3,248.88 = 996.28 : x
  2. Step 2: Convert to fraction form
    2,166.64/3,248.88 = 996.28/x
  3. Step 3: Cross multiply
    2,166.64x = 3,248.88 × 996.28
  4. Step 4: Simplify right side
    2,166.64x = 3,236,794.17
  5. Step 5: Solve for x
    x = 3,236,794.17/2,166.64
  6. Step 6: Final answer
    x = 1,493.92

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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.