Home / 3,814.58-5,722.68-1,217.72

Finding the Fourth Proportional to 3,814.58, 5,722.68 and 1,217.72

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Solution

The fourth proportional to 3,814.58, 5,722.68 and 1,217.72 is: 1,826.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,814.58 : 5,722.68 = 1,217.72 : x
  2. Step 2: Convert to fraction form
    3,814.58/5,722.68 = 1,217.72/x
  3. Step 3: Cross multiply
    3,814.58x = 5,722.68 × 1,217.72
  4. Step 4: Simplify right side
    3,814.58x = 6,968,621.89
  5. Step 5: Solve for x
    x = 6,968,621.89/3,814.58
  6. Step 6: Final answer
    x = 1,826.84

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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.