Home / 4,919.13-6,789.56-3,031.90

Finding the Fourth Proportional to 4,919.13, 6,789.56 and 3,031.90

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Solution

The fourth proportional to 4,919.13, 6,789.56 and 3,031.90 is: 4,184.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.13 : 6,789.56 = 3,031.90 : x
  2. Step 2: Convert to fraction form
    4,919.13/6,789.56 = 3,031.90/x
  3. Step 3: Cross multiply
    4,919.13x = 6,789.56 × 3,031.90
  4. Step 4: Simplify right side
    4,919.13x = 20,585,234.83
  5. Step 5: Solve for x
    x = 20,585,234.83/4,919.13
  6. Step 6: Final answer
    x = 4,184.73

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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.