Home / 6,540.94-9,811.75-2,158.74

Finding the Fourth Proportional to 6,540.94, 9,811.75 and 2,158.74

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Solution

The fourth proportional to 6,540.94, 9,811.75 and 2,158.74 is: 3,238.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,540.94 : 9,811.75 = 2,158.74 : x
  2. Step 2: Convert to fraction form
    6,540.94/9,811.75 = 2,158.74/x
  3. Step 3: Cross multiply
    6,540.94x = 9,811.75 × 2,158.74
  4. Step 4: Simplify right side
    6,540.94x = 21,181,036.21
  5. Step 5: Solve for x
    x = 21,181,036.21/6,540.94
  6. Step 6: Final answer
    x = 3,238.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.