Home / 5,138.28-7,708.67-2,017.48

Finding the Fourth Proportional to 5,138.28, 7,708.67 and 2,017.48

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Solution

The fourth proportional to 5,138.28, 7,708.67 and 2,017.48 is: 3,026.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138.28 : 7,708.67 = 2,017.48 : x
  2. Step 2: Convert to fraction form
    5,138.28/7,708.67 = 2,017.48/x
  3. Step 3: Cross multiply
    5,138.28x = 7,708.67 × 2,017.48
  4. Step 4: Simplify right side
    5,138.28x = 15,552,087.55
  5. Step 5: Solve for x
    x = 15,552,087.55/5,138.28
  6. Step 6: Final answer
    x = 3,026.71

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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.