Home / 6,727.59-9,281.79-3,894.21

Finding the Fourth Proportional to 6,727.59, 9,281.79 and 3,894.21

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Solution

The fourth proportional to 6,727.59, 9,281.79 and 3,894.21 is: 5,372.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,727.59 : 9,281.79 = 3,894.21 : x
  2. Step 2: Convert to fraction form
    6,727.59/9,281.79 = 3,894.21/x
  3. Step 3: Cross multiply
    6,727.59x = 9,281.79 × 3,894.21
  4. Step 4: Simplify right side
    6,727.59x = 36,145,239.44
  5. Step 5: Solve for x
    x = 36,145,239.44/6,727.59
  6. Step 6: Final answer
    x = 5,372.69

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1.5x scale

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.