Home / 5,138.90-7,704.76-2,633.94

Finding the Fourth Proportional to 5,138.90, 7,704.76 and 2,633.94

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Solution

The fourth proportional to 5,138.90, 7,704.76 and 2,633.94 is: 3,949.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138.90 : 7,704.76 = 2,633.94 : x
  2. Step 2: Convert to fraction form
    5,138.90/7,704.76 = 2,633.94/x
  3. Step 3: Cross multiply
    5,138.90x = 7,704.76 × 2,633.94
  4. Step 4: Simplify right side
    5,138.90x = 20,293,875.55
  5. Step 5: Solve for x
    x = 20,293,875.55/5,138.90
  6. Step 6: Final answer
    x = 3,949.07

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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.