Home / 6,723.81-9,278.80-3,739.92

Finding the Fourth Proportional to 6,723.81, 9,278.80 and 3,739.92

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Solution

The fourth proportional to 6,723.81, 9,278.80 and 3,739.92 is: 5,161.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,723.81 : 9,278.80 = 3,739.92 : x
  2. Step 2: Convert to fraction form
    6,723.81/9,278.80 = 3,739.92/x
  3. Step 3: Cross multiply
    6,723.81x = 9,278.80 × 3,739.92
  4. Step 4: Simplify right side
    6,723.81x = 34,701,998.78
  5. Step 5: Solve for x
    x = 34,701,998.78/6,723.81
  6. Step 6: Final answer
    x = 5,161.06

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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.