Home / 3,376.50-4,659.75-1,979.70

Finding the Fourth Proportional to 3,376.50, 4,659.75 and 1,979.70

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Solution

The fourth proportional to 3,376.50, 4,659.75 and 1,979.70 is: 2,732.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,376.50 : 4,659.75 = 1,979.70 : x
  2. Step 2: Convert to fraction form
    3,376.50/4,659.75 = 1,979.70/x
  3. Step 3: Cross multiply
    3,376.50x = 4,659.75 × 1,979.70
  4. Step 4: Simplify right side
    3,376.50x = 9,224,907.08
  5. Step 5: Solve for x
    x = 9,224,907.08/3,376.50
  6. Step 6: Final answer
    x = 2,732.09

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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.