Home / 3,261.74-4,892.40-1,071.90

Finding the Fourth Proportional to 3,261.74, 4,892.40 and 1,071.90

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Solution

The fourth proportional to 3,261.74, 4,892.40 and 1,071.90 is: 1,607.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.74 : 4,892.40 = 1,071.90 : x
  2. Step 2: Convert to fraction form
    3,261.74/4,892.40 = 1,071.90/x
  3. Step 3: Cross multiply
    3,261.74x = 4,892.40 × 1,071.90
  4. Step 4: Simplify right side
    3,261.74x = 5,244,163.56
  5. Step 5: Solve for x
    x = 5,244,163.56/3,261.74
  6. Step 6: Final answer
    x = 1,607.78

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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.