Home / 4,917.12-6,788.88-3,149.52

Finding the Fourth Proportional to 4,917.12, 6,788.88 and 3,149.52

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Solution

The fourth proportional to 4,917.12, 6,788.88 and 3,149.52 is: 4,348.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,917.12 : 6,788.88 = 3,149.52 : x
  2. Step 2: Convert to fraction form
    4,917.12/6,788.88 = 3,149.52/x
  3. Step 3: Cross multiply
    4,917.12x = 6,788.88 × 3,149.52
  4. Step 4: Simplify right side
    4,917.12x = 21,381,713.34
  5. Step 5: Solve for x
    x = 21,381,713.34/4,917.12
  6. Step 6: Final answer
    x = 4,348.42

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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.