Home / 5,179.14-7,143.26-3,188.97

Finding the Fourth Proportional to 5,179.14, 7,143.26 and 3,188.97

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Solution

The fourth proportional to 5,179.14, 7,143.26 and 3,188.97 is: 4,398.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.14 : 7,143.26 = 3,188.97 : x
  2. Step 2: Convert to fraction form
    5,179.14/7,143.26 = 3,188.97/x
  3. Step 3: Cross multiply
    5,179.14x = 7,143.26 × 3,188.97
  4. Step 4: Simplify right side
    5,179.14x = 22,779,625.90
  5. Step 5: Solve for x
    x = 22,779,625.90/5,179.14
  6. Step 6: Final answer
    x = 4,398.34

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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.