Home / 3,218.69-4,819.86-2,697.32

Finding the Fourth Proportional to 3,218.69, 4,819.86 and 2,697.32

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Solution

The fourth proportional to 3,218.69, 4,819.86 and 2,697.32 is: 4,039.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.69 : 4,819.86 = 2,697.32 : x
  2. Step 2: Convert to fraction form
    3,218.69/4,819.86 = 2,697.32/x
  3. Step 3: Cross multiply
    3,218.69x = 4,819.86 × 2,697.32
  4. Step 4: Simplify right side
    3,218.69x = 13,000,704.78
  5. Step 5: Solve for x
    x = 13,000,704.78/3,218.69
  6. Step 6: Final answer
    x = 4,039.13

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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.