Home / 5,679.30-7,837.92-3,161.88

Finding the Fourth Proportional to 5,679.30, 7,837.92 and 3,161.88

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Solution

The fourth proportional to 5,679.30, 7,837.92 and 3,161.88 is: 4,363.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679.30 : 7,837.92 = 3,161.88 : x
  2. Step 2: Convert to fraction form
    5,679.30/7,837.92 = 3,161.88/x
  3. Step 3: Cross multiply
    5,679.30x = 7,837.92 × 3,161.88
  4. Step 4: Simplify right side
    5,679.30x = 24,782,562.49
  5. Step 5: Solve for x
    x = 24,782,562.49/5,679.30
  6. Step 6: Final answer
    x = 4,363.66

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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.