Home / 6,617.82-9,928.39-2,921.07

Finding the Fourth Proportional to 6,617.82, 9,928.39 and 2,921.07

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Solution

The fourth proportional to 6,617.82, 9,928.39 and 2,921.07 is: 4,382.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,617.82 : 9,928.39 = 2,921.07 : x
  2. Step 2: Convert to fraction form
    6,617.82/9,928.39 = 2,921.07/x
  3. Step 3: Cross multiply
    6,617.82x = 9,928.39 × 2,921.07
  4. Step 4: Simplify right side
    6,617.82x = 29,001,472.54
  5. Step 5: Solve for x
    x = 29,001,472.54/6,617.82
  6. Step 6: Final answer
    x = 4,382.33

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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.