Home / 3,148.08-4,717.80-1,991.76

Finding the Fourth Proportional to 3,148.08, 4,717.80 and 1,991.76

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Solution

The fourth proportional to 3,148.08, 4,717.80 and 1,991.76 is: 2,984.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.08 : 4,717.80 = 1,991.76 : x
  2. Step 2: Convert to fraction form
    3,148.08/4,717.80 = 1,991.76/x
  3. Step 3: Cross multiply
    3,148.08x = 4,717.80 × 1,991.76
  4. Step 4: Simplify right side
    3,148.08x = 9,396,725.33
  5. Step 5: Solve for x
    x = 9,396,725.33/3,148.08
  6. Step 6: Final answer
    x = 2,984.91

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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.