Home / 3,905.27-5,854.82-1,438.74

Finding the Fourth Proportional to 3,905.27, 5,854.82 and 1,438.74

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Solution

The fourth proportional to 3,905.27, 5,854.82 and 1,438.74 is: 2,156.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905.27 : 5,854.82 = 1,438.74 : x
  2. Step 2: Convert to fraction form
    3,905.27/5,854.82 = 1,438.74/x
  3. Step 3: Cross multiply
    3,905.27x = 5,854.82 × 1,438.74
  4. Step 4: Simplify right side
    3,905.27x = 8,423,563.73
  5. Step 5: Solve for x
    x = 8,423,563.73/3,905.27
  6. Step 6: Final answer
    x = 2,156.97

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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.