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Finding the Fourth Proportional to 6,720.80, 10,081.22 and 2,040.84

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Solution

The fourth proportional to 6,720.80, 10,081.22 and 2,040.84 is: 3,061.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720.80 : 10,081.22 = 2,040.84 : x
  2. Step 2: Convert to fraction form
    6,720.80/10,081.22 = 2,040.84/x
  3. Step 3: Cross multiply
    6,720.80x = 10,081.22 × 2,040.84
  4. Step 4: Simplify right side
    6,720.80x = 20,574,157.02
  5. Step 5: Solve for x
    x = 20,574,157.02/6,720.80
  6. Step 6: Final answer
    x = 3,061.27

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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.