Home / 6,814.28-9,403.32-3,789.20

Finding the Fourth Proportional to 6,814.28, 9,403.32 and 3,789.20

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Solution

The fourth proportional to 6,814.28, 9,403.32 and 3,789.20 is: 5,228.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,814.28 : 9,403.32 = 3,789.20 : x
  2. Step 2: Convert to fraction form
    6,814.28/9,403.32 = 3,789.20/x
  3. Step 3: Cross multiply
    6,814.28x = 9,403.32 × 3,789.20
  4. Step 4: Simplify right side
    6,814.28x = 35,631,060.14
  5. Step 5: Solve for x
    x = 35,631,060.14/6,814.28
  6. Step 6: Final answer
    x = 5,228.88

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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.