Home / 2,773.28-3,821.87-1,985.96

Finding the Fourth Proportional to 2,773.28, 3,821.87 and 1,985.96

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Solution

The fourth proportional to 2,773.28, 3,821.87 and 1,985.96 is: 2,736.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,773.28 : 3,821.87 = 1,985.96 : x
  2. Step 2: Convert to fraction form
    2,773.28/3,821.87 = 1,985.96/x
  3. Step 3: Cross multiply
    2,773.28x = 3,821.87 × 1,985.96
  4. Step 4: Simplify right side
    2,773.28x = 7,590,071.02
  5. Step 5: Solve for x
    x = 7,590,071.02/2,773.28
  6. Step 6: Final answer
    x = 2,736.86

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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.