Home / 5,126.28-7,687.99-2,005.65

Finding the Fourth Proportional to 5,126.28, 7,687.99 and 2,005.65

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Solution

The fourth proportional to 5,126.28, 7,687.99 and 2,005.65 is: 3,007.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126.28 : 7,687.99 = 2,005.65 : x
  2. Step 2: Convert to fraction form
    5,126.28/7,687.99 = 2,005.65/x
  3. Step 3: Cross multiply
    5,126.28x = 7,687.99 × 2,005.65
  4. Step 4: Simplify right side
    5,126.28x = 15,419,417.14
  5. Step 5: Solve for x
    x = 15,419,417.14/5,126.28
  6. Step 6: Final answer
    x = 3,007.92

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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.