Home / 2,703.86-4,057.39-1,143.78

Finding the Fourth Proportional to 2,703.86, 4,057.39 and 1,143.78

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Solution

The fourth proportional to 2,703.86, 4,057.39 and 1,143.78 is: 1,716.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,703.86 : 4,057.39 = 1,143.78 : x
  2. Step 2: Convert to fraction form
    2,703.86/4,057.39 = 1,143.78/x
  3. Step 3: Cross multiply
    2,703.86x = 4,057.39 × 1,143.78
  4. Step 4: Simplify right side
    2,703.86x = 4,640,761.53
  5. Step 5: Solve for x
    x = 4,640,761.53/2,703.86
  6. Step 6: Final answer
    x = 1,716.35

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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.