Home / 3,412.32-5,119.92-1,769.28

Finding the Fourth Proportional to 3,412.32, 5,119.92 and 1,769.28

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Solution

The fourth proportional to 3,412.32, 5,119.92 and 1,769.28 is: 2,654.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.32 : 5,119.92 = 1,769.28 : x
  2. Step 2: Convert to fraction form
    3,412.32/5,119.92 = 1,769.28/x
  3. Step 3: Cross multiply
    3,412.32x = 5,119.92 × 1,769.28
  4. Step 4: Simplify right side
    3,412.32x = 9,058,572.06
  5. Step 5: Solve for x
    x = 9,058,572.06/3,412.32
  6. Step 6: Final answer
    x = 2,654.67

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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.