Home / 4,979.81-7,469.69-3,125.25

Finding the Fourth Proportional to 4,979.81, 7,469.69 and 3,125.25

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Solution

The fourth proportional to 4,979.81, 7,469.69 and 3,125.25 is: 4,687.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.81 : 7,469.69 = 3,125.25 : x
  2. Step 2: Convert to fraction form
    4,979.81/7,469.69 = 3,125.25/x
  3. Step 3: Cross multiply
    4,979.81x = 7,469.69 × 3,125.25
  4. Step 4: Simplify right side
    4,979.81x = 23,344,633.05
  5. Step 5: Solve for x
    x = 23,344,633.05/4,979.81
  6. Step 6: Final answer
    x = 4,687.85

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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.