Home / 4,812.72-7,231.26-4,618.32

Finding the Fourth Proportional to 4,812.72, 7,231.26 and 4,618.32

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Solution

The fourth proportional to 4,812.72, 7,231.26 and 4,618.32 is: 6,939.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,812.72 : 7,231.26 = 4,618.32 : x
  2. Step 2: Convert to fraction form
    4,812.72/7,231.26 = 4,618.32/x
  3. Step 3: Cross multiply
    4,812.72x = 7,231.26 × 4,618.32
  4. Step 4: Simplify right side
    4,812.72x = 33,396,272.68
  5. Step 5: Solve for x
    x = 33,396,272.68/4,812.72
  6. Step 6: Final answer
    x = 6,939.17

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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.