Home / 4,979.40-7,469.10-4,760.70

Finding the Fourth Proportional to 4,979.40, 7,469.10 and 4,760.70

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Solution

The fourth proportional to 4,979.40, 7,469.10 and 4,760.70 is: 7,141.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.40 : 7,469.10 = 4,760.70 : x
  2. Step 2: Convert to fraction form
    4,979.40/7,469.10 = 4,760.70/x
  3. Step 3: Cross multiply
    4,979.40x = 7,469.10 × 4,760.70
  4. Step 4: Simplify right side
    4,979.40x = 35,558,144.37
  5. Step 5: Solve for x
    x = 35,558,144.37/4,979.40
  6. Step 6: Final answer
    x = 7,141.05

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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.