Home / 5,131.25-7,703.26-3,581.12

Finding the Fourth Proportional to 5,131.25, 7,703.26 and 3,581.12

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Solution

The fourth proportional to 5,131.25, 7,703.26 and 3,581.12 is: 5,376.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.25 : 7,703.26 = 3,581.12 : x
  2. Step 2: Convert to fraction form
    5,131.25/7,703.26 = 3,581.12/x
  3. Step 3: Cross multiply
    5,131.25x = 7,703.26 × 3,581.12
  4. Step 4: Simplify right side
    5,131.25x = 27,586,250.98
  5. Step 5: Solve for x
    x = 27,586,250.98/5,131.25
  6. Step 6: Final answer
    x = 5,376.12

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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.