Home / 6,678.25-9,215.78-3,845.68

Finding the Fourth Proportional to 6,678.25, 9,215.78 and 3,845.68

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Solution

The fourth proportional to 6,678.25, 9,215.78 and 3,845.68 is: 5,306.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,678.25 : 9,215.78 = 3,845.68 : x
  2. Step 2: Convert to fraction form
    6,678.25/9,215.78 = 3,845.68/x
  3. Step 3: Cross multiply
    6,678.25x = 9,215.78 × 3,845.68
  4. Step 4: Simplify right side
    6,678.25x = 35,440,898.56
  5. Step 5: Solve for x
    x = 35,440,898.56/6,678.25
  6. Step 6: Final answer
    x = 5,306.92

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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.