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Finding the Fourth Proportional to 2,011.64, 2,773.96 and 1,591.32

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Solution

The fourth proportional to 2,011.64, 2,773.96 and 1,591.32 is: 2,194.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.64 : 2,773.96 = 1,591.32 : x
  2. Step 2: Convert to fraction form
    2,011.64/2,773.96 = 1,591.32/x
  3. Step 3: Cross multiply
    2,011.64x = 2,773.96 × 1,591.32
  4. Step 4: Simplify right side
    2,011.64x = 4,414,258.03
  5. Step 5: Solve for x
    x = 4,414,258.03/2,011.64
  6. Step 6: Final answer
    x = 2,194.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.