Home / 7,838.26-11,749.14-2,571.90

Finding the Fourth Proportional to 7,838.26, 11,749.14 and 2,571.90

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Solution

The fourth proportional to 7,838.26, 11,749.14 and 2,571.90 is: 3,855.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,838.26 : 11,749.14 = 2,571.90 : x
  2. Step 2: Convert to fraction form
    7,838.26/11,749.14 = 2,571.90/x
  3. Step 3: Cross multiply
    7,838.26x = 11,749.14 × 2,571.90
  4. Step 4: Simplify right side
    7,838.26x = 30,217,613.17
  5. Step 5: Solve for x
    x = 30,217,613.17/7,838.26
  6. Step 6: Final answer
    x = 3,855.14

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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.