Home / 6,723.60-9,278.06-3,890.97

Finding the Fourth Proportional to 6,723.60, 9,278.06 and 3,890.97

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Solution

The fourth proportional to 6,723.60, 9,278.06 and 3,890.97 is: 5,369.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,723.60 : 9,278.06 = 3,890.97 : x
  2. Step 2: Convert to fraction form
    6,723.60/9,278.06 = 3,890.97/x
  3. Step 3: Cross multiply
    6,723.60x = 9,278.06 × 3,890.97
  4. Step 4: Simplify right side
    6,723.60x = 36,100,653.12
  5. Step 5: Solve for x
    x = 36,100,653.12/6,723.60
  6. Step 6: Final answer
    x = 5,369.24

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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.