Home / 3,217.88-4,827.35-1,109.42

Finding the Fourth Proportional to 3,217.88, 4,827.35 and 1,109.42

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Solution

The fourth proportional to 3,217.88, 4,827.35 and 1,109.42 is: 1,664.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.88 : 4,827.35 = 1,109.42 : x
  2. Step 2: Convert to fraction form
    3,217.88/4,827.35 = 1,109.42/x
  3. Step 3: Cross multiply
    3,217.88x = 4,827.35 × 1,109.42
  4. Step 4: Simplify right side
    3,217.88x = 5,355,558.64
  5. Step 5: Solve for x
    x = 5,355,558.64/3,217.88
  6. Step 6: Final answer
    x = 1,664.31

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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.