Home / 6,678.20-9,216.62-3,845.68

Finding the Fourth Proportional to 6,678.20, 9,216.62 and 3,845.68

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Solution

The fourth proportional to 6,678.20, 9,216.62 and 3,845.68 is: 5,307.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,678.20 : 9,216.62 = 3,845.68 : x
  2. Step 2: Convert to fraction form
    6,678.20/9,216.62 = 3,845.68/x
  3. Step 3: Cross multiply
    6,678.20x = 9,216.62 × 3,845.68
  4. Step 4: Simplify right side
    6,678.20x = 35,444,171.20
  5. Step 5: Solve for x
    x = 35,444,171.20/6,678.20
  6. Step 6: Final answer
    x = 5,307.44

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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.