Home / 4,720.50-7,071.12-2,217.87

Finding the Fourth Proportional to 4,720.50, 7,071.12 and 2,217.87

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Solution

The fourth proportional to 4,720.50, 7,071.12 and 2,217.87 is: 3,322.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720.50 : 7,071.12 = 2,217.87 : x
  2. Step 2: Convert to fraction form
    4,720.50/7,071.12 = 2,217.87/x
  3. Step 3: Cross multiply
    4,720.50x = 7,071.12 × 2,217.87
  4. Step 4: Simplify right side
    4,720.50x = 15,682,824.91
  5. Step 5: Solve for x
    x = 15,682,824.91/4,720.50
  6. Step 6: Final answer
    x = 3,322.28

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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.