Home / 5,678.83-7,836.47-3,288.38

Finding the Fourth Proportional to 5,678.83, 7,836.47 and 3,288.38

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Solution

The fourth proportional to 5,678.83, 7,836.47 and 3,288.38 is: 4,537.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.83 : 7,836.47 = 3,288.38 : x
  2. Step 2: Convert to fraction form
    5,678.83/7,836.47 = 3,288.38/x
  3. Step 3: Cross multiply
    5,678.83x = 7,836.47 × 3,288.38
  4. Step 4: Simplify right side
    5,678.83x = 25,769,299.44
  5. Step 5: Solve for x
    x = 25,769,299.44/5,678.83
  6. Step 6: Final answer
    x = 4,537.79

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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.