Home / 4,920.92-6,789.88-4,173.72

Finding the Fourth Proportional to 4,920.92, 6,789.88 and 4,173.72

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Solution

The fourth proportional to 4,920.92, 6,789.88 and 4,173.72 is: 5,758.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.92 : 6,789.88 = 4,173.72 : x
  2. Step 2: Convert to fraction form
    4,920.92/6,789.88 = 4,173.72/x
  3. Step 3: Cross multiply
    4,920.92x = 6,789.88 × 4,173.72
  4. Step 4: Simplify right side
    4,920.92x = 28,339,057.95
  5. Step 5: Solve for x
    x = 28,339,057.95/4,920.92
  6. Step 6: Final answer
    x = 5,758.89

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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.