Home / 5,091.99-7,031.24-3,830.87

Finding the Fourth Proportional to 5,091.99, 7,031.24 and 3,830.87

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Solution

The fourth proportional to 5,091.99, 7,031.24 and 3,830.87 is: 5,289.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,091.99 : 7,031.24 = 3,830.87 : x
  2. Step 2: Convert to fraction form
    5,091.99/7,031.24 = 3,830.87/x
  3. Step 3: Cross multiply
    5,091.99x = 7,031.24 × 3,830.87
  4. Step 4: Simplify right side
    5,091.99x = 26,935,766.38
  5. Step 5: Solve for x
    x = 26,935,766.38/5,091.99
  6. Step 6: Final answer
    x = 5,289.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.