Home / 3,412.82-5,121.98-1,769.84

Finding the Fourth Proportional to 3,412.82, 5,121.98 and 1,769.84

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Solution

The fourth proportional to 3,412.82, 5,121.98 and 1,769.84 is: 2,656.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.82 : 5,121.98 = 1,769.84 : x
  2. Step 2: Convert to fraction form
    3,412.82/5,121.98 = 1,769.84/x
  3. Step 3: Cross multiply
    3,412.82x = 5,121.98 × 1,769.84
  4. Step 4: Simplify right side
    3,412.82x = 9,065,085.08
  5. Step 5: Solve for x
    x = 9,065,085.08/3,412.82
  6. Step 6: Final answer
    x = 2,656.19

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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.