Home / 2,770.85-3,823.86-1,511.97

Finding the Fourth Proportional to 2,770.85, 3,823.86 and 1,511.97

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Solution

The fourth proportional to 2,770.85, 3,823.86 and 1,511.97 is: 2,086.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,770.85 : 3,823.86 = 1,511.97 : x
  2. Step 2: Convert to fraction form
    2,770.85/3,823.86 = 1,511.97/x
  3. Step 3: Cross multiply
    2,770.85x = 3,823.86 × 1,511.97
  4. Step 4: Simplify right side
    2,770.85x = 5,781,561.60
  5. Step 5: Solve for x
    x = 5,781,561.60/2,770.85
  6. Step 6: Final answer
    x = 2,086.57

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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.