Home / 4,720.22-7,079.91-2,220.81

Finding the Fourth Proportional to 4,720.22, 7,079.91 and 2,220.81

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Solution

The fourth proportional to 4,720.22, 7,079.91 and 2,220.81 is: 3,331.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720.22 : 7,079.91 = 2,220.81 : x
  2. Step 2: Convert to fraction form
    4,720.22/7,079.91 = 2,220.81/x
  3. Step 3: Cross multiply
    4,720.22x = 7,079.91 × 2,220.81
  4. Step 4: Simplify right side
    4,720.22x = 15,723,134.93
  5. Step 5: Solve for x
    x = 15,723,134.93/4,720.22
  6. Step 6: Final answer
    x = 3,331.02

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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.