Home / 6,815.91-10,221.88-2,654.99

Finding the Fourth Proportional to 6,815.91, 10,221.88 and 2,654.99

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Solution

The fourth proportional to 6,815.91, 10,221.88 and 2,654.99 is: 3,981.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,815.91 : 10,221.88 = 2,654.99 : x
  2. Step 2: Convert to fraction form
    6,815.91/10,221.88 = 2,654.99/x
  3. Step 3: Cross multiply
    6,815.91x = 10,221.88 × 2,654.99
  4. Step 4: Simplify right side
    6,815.91x = 27,138,989.18
  5. Step 5: Solve for x
    x = 27,138,989.18/6,815.91
  6. Step 6: Final answer
    x = 3,981.71

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1.5x scale

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.