Home / 2,757.25-4,135.85-1,113.77

Finding the Fourth Proportional to 2,757.25, 4,135.85 and 1,113.77

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Solution

The fourth proportional to 2,757.25, 4,135.85 and 1,113.77 is: 1,670.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,757.25 : 4,135.85 = 1,113.77 : x
  2. Step 2: Convert to fraction form
    2,757.25/4,135.85 = 1,113.77/x
  3. Step 3: Cross multiply
    2,757.25x = 4,135.85 × 1,113.77
  4. Step 4: Simplify right side
    2,757.25x = 4,606,359.41
  5. Step 5: Solve for x
    x = 4,606,359.41/2,757.25
  6. Step 6: Final answer
    x = 1,670.64

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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.