Home / 6,540.25-9,811.77-2,157.55

Finding the Fourth Proportional to 6,540.25, 9,811.77 and 2,157.55

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Solution

The fourth proportional to 6,540.25, 9,811.77 and 2,157.55 is: 3,236.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,540.25 : 9,811.77 = 2,157.55 : x
  2. Step 2: Convert to fraction form
    6,540.25/9,811.77 = 2,157.55/x
  3. Step 3: Cross multiply
    6,540.25x = 9,811.77 × 2,157.55
  4. Step 4: Simplify right side
    6,540.25x = 21,169,384.36
  5. Step 5: Solve for x
    x = 21,169,384.36/6,540.25
  6. Step 6: Final answer
    x = 3,236.79

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1.5x scale

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.