Home / 3,904.97-5,857.46-1,438.72

Finding the Fourth Proportional to 3,904.97, 5,857.46 and 1,438.72

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Solution

The fourth proportional to 3,904.97, 5,857.46 and 1,438.72 is: 2,158.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.97 : 5,857.46 = 1,438.72 : x
  2. Step 2: Convert to fraction form
    3,904.97/5,857.46 = 1,438.72/x
  3. Step 3: Cross multiply
    3,904.97x = 5,857.46 × 1,438.72
  4. Step 4: Simplify right side
    3,904.97x = 8,427,244.85
  5. Step 5: Solve for x
    x = 8,427,244.85/3,904.97
  6. Step 6: Final answer
    x = 2,158.08

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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.