Home / 3,836.56-5,294.40-2,157.84

Finding the Fourth Proportional to 3,836.56, 5,294.40 and 2,157.84

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Solution

The fourth proportional to 3,836.56, 5,294.40 and 2,157.84 is: 2,977.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,836.56 : 5,294.40 = 2,157.84 : x
  2. Step 2: Convert to fraction form
    3,836.56/5,294.40 = 2,157.84/x
  3. Step 3: Cross multiply
    3,836.56x = 5,294.40 × 2,157.84
  4. Step 4: Simplify right side
    3,836.56x = 11,424,468.10
  5. Step 5: Solve for x
    x = 11,424,468.10/3,836.56
  6. Step 6: Final answer
    x = 2,977.79

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