Home / 3,938.28-5,903.76-1,339.41

Finding the Fourth Proportional to 3,938.28, 5,903.76 and 1,339.41

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Solution

The fourth proportional to 3,938.28, 5,903.76 and 1,339.41 is: 2,007.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.28 : 5,903.76 = 1,339.41 : x
  2. Step 2: Convert to fraction form
    3,938.28/5,903.76 = 1,339.41/x
  3. Step 3: Cross multiply
    3,938.28x = 5,903.76 × 1,339.41
  4. Step 4: Simplify right side
    3,938.28x = 7,907,555.18
  5. Step 5: Solve for x
    x = 7,907,555.18/3,938.28
  6. Step 6: Final answer
    x = 2,007.87

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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.