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Finding the Fourth Proportional to 3,805.58, 5,251.64 and 2,126.96

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Solution

The fourth proportional to 3,805.58, 5,251.64 and 2,126.96 is: 2,935.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,805.58 : 5,251.64 = 2,126.96 : x
  2. Step 2: Convert to fraction form
    3,805.58/5,251.64 = 2,126.96/x
  3. Step 3: Cross multiply
    3,805.58x = 5,251.64 × 2,126.96
  4. Step 4: Simplify right side
    3,805.58x = 11,170,011.02
  5. Step 5: Solve for x
    x = 11,170,011.02/3,805.58
  6. Step 6: Final answer
    x = 2,935.16

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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.