Home / 2,938.28-4,401.66-1,290.92

Finding the Fourth Proportional to 2,938.28, 4,401.66 and 1,290.92

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Solution

The fourth proportional to 2,938.28, 4,401.66 and 1,290.92 is: 1,933.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.28 : 4,401.66 = 1,290.92 : x
  2. Step 2: Convert to fraction form
    2,938.28/4,401.66 = 1,290.92/x
  3. Step 3: Cross multiply
    2,938.28x = 4,401.66 × 1,290.92
  4. Step 4: Simplify right side
    2,938.28x = 5,682,190.93
  5. Step 5: Solve for x
    x = 5,682,190.93/2,938.28
  6. Step 6: Final answer
    x = 1,933.85

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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.