Home / 7,217.88-10,819.29-3,515.01

Finding the Fourth Proportional to 7,217.88, 10,819.29 and 3,515.01

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Solution

The fourth proportional to 7,217.88, 10,819.29 and 3,515.01 is: 5,268.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,217.88 : 10,819.29 = 3,515.01 : x
  2. Step 2: Convert to fraction form
    7,217.88/10,819.29 = 3,515.01/x
  3. Step 3: Cross multiply
    7,217.88x = 10,819.29 × 3,515.01
  4. Step 4: Simplify right side
    7,217.88x = 38,029,926.24
  5. Step 5: Solve for x
    x = 38,029,926.24/7,217.88
  6. Step 6: Final answer
    x = 5,268.85

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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.