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Finding the Fourth Proportional to 7,220.58, 10,832.08 and 2,540.40

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Solution

The fourth proportional to 7,220.58, 10,832.08 and 2,540.40 is: 3,811.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.58 : 10,832.08 = 2,540.40 : x
  2. Step 2: Convert to fraction form
    7,220.58/10,832.08 = 2,540.40/x
  3. Step 3: Cross multiply
    7,220.58x = 10,832.08 × 2,540.40
  4. Step 4: Simplify right side
    7,220.58x = 27,517,816.03
  5. Step 5: Solve for x
    x = 27,517,816.03/7,220.58
  6. Step 6: Final answer
    x = 3,811.03

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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.