Home / 6,981.75-9,634.86-3,838.05

Finding the Fourth Proportional to 6,981.75, 9,634.86 and 3,838.05

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Solution

The fourth proportional to 6,981.75, 9,634.86 and 3,838.05 is: 5,296.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,981.75 : 9,634.86 = 3,838.05 : x
  2. Step 2: Convert to fraction form
    6,981.75/9,634.86 = 3,838.05/x
  3. Step 3: Cross multiply
    6,981.75x = 9,634.86 × 3,838.05
  4. Step 4: Simplify right side
    6,981.75x = 36,979,074.42
  5. Step 5: Solve for x
    x = 36,979,074.42/6,981.75
  6. Step 6: Final answer
    x = 5,296.53

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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.