Home / 5,163.09-7,125.08-2,805.22

Finding the Fourth Proportional to 5,163.09, 7,125.08 and 2,805.22

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Solution

The fourth proportional to 5,163.09, 7,125.08 and 2,805.22 is: 3,871.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,163.09 : 7,125.08 = 2,805.22 : x
  2. Step 2: Convert to fraction form
    5,163.09/7,125.08 = 2,805.22/x
  3. Step 3: Cross multiply
    5,163.09x = 7,125.08 × 2,805.22
  4. Step 4: Simplify right side
    5,163.09x = 19,987,416.92
  5. Step 5: Solve for x
    x = 19,987,416.92/5,163.09
  6. Step 6: Final answer
    x = 3,871.21

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1.5x scale

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.