Home / 6,464.28-9,696.18-2,081.76

Finding the Fourth Proportional to 6,464.28, 9,696.18 and 2,081.76

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Solution

The fourth proportional to 6,464.28, 9,696.18 and 2,081.76 is: 3,122.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,464.28 : 9,696.18 = 2,081.76 : x
  2. Step 2: Convert to fraction form
    6,464.28/9,696.18 = 2,081.76/x
  3. Step 3: Cross multiply
    6,464.28x = 9,696.18 × 2,081.76
  4. Step 4: Simplify right side
    6,464.28x = 20,185,119.68
  5. Step 5: Solve for x
    x = 20,185,119.68/6,464.28
  6. Step 6: Final answer
    x = 3,122.56

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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.