Home / 6,678.36-9,215.78-3,845.25

Finding the Fourth Proportional to 6,678.36, 9,215.78 and 3,845.25

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Solution

The fourth proportional to 6,678.36, 9,215.78 and 3,845.25 is: 5,306.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,678.36 : 9,215.78 = 3,845.25 : x
  2. Step 2: Convert to fraction form
    6,678.36/9,215.78 = 3,845.25/x
  3. Step 3: Cross multiply
    6,678.36x = 9,215.78 × 3,845.25
  4. Step 4: Simplify right side
    6,678.36x = 35,436,958.82
  5. Step 5: Solve for x
    x = 35,436,958.82/6,678.36
  6. Step 6: Final answer
    x = 5,306.24

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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.