Home / 3,917.16-5,405.94-2,737.80

Finding the Fourth Proportional to 3,917.16, 5,405.94 and 2,737.80

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Solution

The fourth proportional to 3,917.16, 5,405.94 and 2,737.80 is: 3,778.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917.16 : 5,405.94 = 2,737.80 : x
  2. Step 2: Convert to fraction form
    3,917.16/5,405.94 = 2,737.80/x
  3. Step 3: Cross multiply
    3,917.16x = 5,405.94 × 2,737.80
  4. Step 4: Simplify right side
    3,917.16x = 14,800,382.53
  5. Step 5: Solve for x
    x = 14,800,382.53/3,917.16
  6. Step 6: Final answer
    x = 3,778.35

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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.