Home / 5,163.48-7,125.33-2,805.61

Finding the Fourth Proportional to 5,163.48, 7,125.33 and 2,805.61

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Solution

The fourth proportional to 5,163.48, 7,125.33 and 2,805.61 is: 3,871.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,163.48 : 7,125.33 = 2,805.61 : x
  2. Step 2: Convert to fraction form
    5,163.48/7,125.33 = 2,805.61/x
  3. Step 3: Cross multiply
    5,163.48x = 7,125.33 × 2,805.61
  4. Step 4: Simplify right side
    5,163.48x = 19,990,897.10
  5. Step 5: Solve for x
    x = 19,990,897.10/5,163.48
  6. Step 6: Final answer
    x = 3,871.59

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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.