Home / 3,489.21-4,814.91-1,917.27

Finding the Fourth Proportional to 3,489.21, 4,814.91 and 1,917.27

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Solution

The fourth proportional to 3,489.21, 4,814.91 and 1,917.27 is: 2,645.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.21 : 4,814.91 = 1,917.27 : x
  2. Step 2: Convert to fraction form
    3,489.21/4,814.91 = 1,917.27/x
  3. Step 3: Cross multiply
    3,489.21x = 4,814.91 × 1,917.27
  4. Step 4: Simplify right side
    3,489.21x = 9,231,482.50
  5. Step 5: Solve for x
    x = 9,231,482.50/3,489.21
  6. Step 6: Final answer
    x = 2,645.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.