Home / 6,618.79-9,133.96-3,786.19

Finding the Fourth Proportional to 6,618.79, 9,133.96 and 3,786.19

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Solution

The fourth proportional to 6,618.79, 9,133.96 and 3,786.19 is: 5,224.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,618.79 : 9,133.96 = 3,786.19 : x
  2. Step 2: Convert to fraction form
    6,618.79/9,133.96 = 3,786.19/x
  3. Step 3: Cross multiply
    6,618.79x = 9,133.96 × 3,786.19
  4. Step 4: Simplify right side
    6,618.79x = 34,582,923.54
  5. Step 5: Solve for x
    x = 34,582,923.54/6,618.79
  6. Step 6: Final answer
    x = 5,224.96

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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.