Home / 3,938.92-5,901.41-3,509.91

Finding the Fourth Proportional to 3,938.92, 5,901.41 and 3,509.91

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Solution

The fourth proportional to 3,938.92, 5,901.41 and 3,509.91 is: 5,258.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.92 : 5,901.41 = 3,509.91 : x
  2. Step 2: Convert to fraction form
    3,938.92/5,901.41 = 3,509.91/x
  3. Step 3: Cross multiply
    3,938.92x = 5,901.41 × 3,509.91
  4. Step 4: Simplify right side
    3,938.92x = 20,713,390.41
  5. Step 5: Solve for x
    x = 20,713,390.41/3,938.92
  6. Step 6: Final answer
    x = 5,258.65

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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.