Home / 5,131.92-7,697.28-3,817.29

Finding the Fourth Proportional to 5,131.92, 7,697.28 and 3,817.29

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Solution

The fourth proportional to 5,131.92, 7,697.28 and 3,817.29 is: 5,725.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.92 : 7,697.28 = 3,817.29 : x
  2. Step 2: Convert to fraction form
    5,131.92/7,697.28 = 3,817.29/x
  3. Step 3: Cross multiply
    5,131.92x = 7,697.28 × 3,817.29
  4. Step 4: Simplify right side
    5,131.92x = 29,382,749.97
  5. Step 5: Solve for x
    x = 29,382,749.97/5,131.92
  6. Step 6: Final answer
    x = 5,725.49

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1.5x scale

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.