Home / 3,239.05-4,856.97-1,678.64

Finding the Fourth Proportional to 3,239.05, 4,856.97 and 1,678.64

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Solution

The fourth proportional to 3,239.05, 4,856.97 and 1,678.64 is: 2,517.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,239.05 : 4,856.97 = 1,678.64 : x
  2. Step 2: Convert to fraction form
    3,239.05/4,856.97 = 1,678.64/x
  3. Step 3: Cross multiply
    3,239.05x = 4,856.97 × 1,678.64
  4. Step 4: Simplify right side
    3,239.05x = 8,153,079.84
  5. Step 5: Solve for x
    x = 8,153,079.84/3,239.05
  6. Step 6: Final answer
    x = 2,517.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.