Home / 6,540.21-9,809.37-2,157.84

Finding the Fourth Proportional to 6,540.21, 9,809.37 and 2,157.84

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Solution

The fourth proportional to 6,540.21, 9,809.37 and 2,157.84 is: 3,236.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,540.21 : 9,809.37 = 2,157.84 : x
  2. Step 2: Convert to fraction form
    6,540.21/9,809.37 = 2,157.84/x
  3. Step 3: Cross multiply
    6,540.21x = 9,809.37 × 2,157.84
  4. Step 4: Simplify right side
    6,540.21x = 21,167,050.96
  5. Step 5: Solve for x
    x = 21,167,050.96/6,540.21
  6. Step 6: Final answer
    x = 3,236.45

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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.