Home / 5,163.33-7,125.40-2,805.47

Finding the Fourth Proportional to 5,163.33, 7,125.40 and 2,805.47

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Solution

The fourth proportional to 5,163.33, 7,125.40 and 2,805.47 is: 3,871.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,163.33 : 7,125.40 = 2,805.47 : x
  2. Step 2: Convert to fraction form
    5,163.33/7,125.40 = 2,805.47/x
  3. Step 3: Cross multiply
    5,163.33x = 7,125.40 × 2,805.47
  4. Step 4: Simplify right side
    5,163.33x = 19,990,090.54
  5. Step 5: Solve for x
    x = 19,990,090.54/5,163.33
  6. Step 6: Final answer
    x = 3,871.55

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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.