Home / 6,940.62-9,561.44-5,740.61

Finding the Fourth Proportional to 6,940.62, 9,561.44 and 5,740.61

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Solution

The fourth proportional to 6,940.62, 9,561.44 and 5,740.61 is: 7,908.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,940.62 : 9,561.44 = 5,740.61 : x
  2. Step 2: Convert to fraction form
    6,940.62/9,561.44 = 5,740.61/x
  3. Step 3: Cross multiply
    6,940.62x = 9,561.44 × 5,740.61
  4. Step 4: Simplify right side
    6,940.62x = 54,888,464.62
  5. Step 5: Solve for x
    x = 54,888,464.62/6,940.62
  6. Step 6: Final answer
    x = 7,908.29

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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.