Home / 5,103.38-7,639.16-3,930.34

Finding the Fourth Proportional to 5,103.38, 7,639.16 and 3,930.34

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Solution

The fourth proportional to 5,103.38, 7,639.16 and 3,930.34 is: 5,883.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103.38 : 7,639.16 = 3,930.34 : x
  2. Step 2: Convert to fraction form
    5,103.38/7,639.16 = 3,930.34/x
  3. Step 3: Cross multiply
    5,103.38x = 7,639.16 × 3,930.34
  4. Step 4: Simplify right side
    5,103.38x = 30,024,496.11
  5. Step 5: Solve for x
    x = 30,024,496.11/5,103.38
  6. Step 6: Final answer
    x = 5,883.26

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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.