Home / 5,708.22-7,876.43-3,189.90

Finding the Fourth Proportional to 5,708.22, 7,876.43 and 3,189.90

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Solution

The fourth proportional to 5,708.22, 7,876.43 and 3,189.90 is: 4,401.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,708.22 : 7,876.43 = 3,189.90 : x
  2. Step 2: Convert to fraction form
    5,708.22/7,876.43 = 3,189.90/x
  3. Step 3: Cross multiply
    5,708.22x = 7,876.43 × 3,189.90
  4. Step 4: Simplify right side
    5,708.22x = 25,125,008.11
  5. Step 5: Solve for x
    x = 25,125,008.11/5,708.22
  6. Step 6: Final answer
    x = 4,401.55

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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.