Home / 3,917.19-5,406.62-2,517.51

Finding the Fourth Proportional to 3,917.19, 5,406.62 and 2,517.51

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Solution

The fourth proportional to 3,917.19, 5,406.62 and 2,517.51 is: 3,474.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917.19 : 5,406.62 = 2,517.51 : x
  2. Step 2: Convert to fraction form
    3,917.19/5,406.62 = 2,517.51/x
  3. Step 3: Cross multiply
    3,917.19x = 5,406.62 × 2,517.51
  4. Step 4: Simplify right side
    3,917.19x = 13,611,199.18
  5. Step 5: Solve for x
    x = 13,611,199.18/3,917.19
  6. Step 6: Final answer
    x = 3,474.74

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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.