Home / 6,724.38-9,280.86-3,891.33

Finding the Fourth Proportional to 6,724.38, 9,280.86 and 3,891.33

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Solution

The fourth proportional to 6,724.38, 9,280.86 and 3,891.33 is: 5,370.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,724.38 : 9,280.86 = 3,891.33 : x
  2. Step 2: Convert to fraction form
    6,724.38/9,280.86 = 3,891.33/x
  3. Step 3: Cross multiply
    6,724.38x = 9,280.86 × 3,891.33
  4. Step 4: Simplify right side
    6,724.38x = 36,114,888.94
  5. Step 5: Solve for x
    x = 36,114,888.94/6,724.38
  6. Step 6: Final answer
    x = 5,370.74

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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.