Home / 4,979.70-7,469.55-4,177.80

Finding the Fourth Proportional to 4,979.70, 7,469.55 and 4,177.80

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Solution

The fourth proportional to 4,979.70, 7,469.55 and 4,177.80 is: 6,266.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.70 : 7,469.55 = 4,177.80 : x
  2. Step 2: Convert to fraction form
    4,979.70/7,469.55 = 4,177.80/x
  3. Step 3: Cross multiply
    4,979.70x = 7,469.55 × 4,177.80
  4. Step 4: Simplify right side
    4,979.70x = 31,206,285.99
  5. Step 5: Solve for x
    x = 31,206,285.99/4,979.70
  6. Step 6: Final answer
    x = 6,266.70

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.